File Explorer Search Not Working in Windows 11 & 10? Every Fix
If File Explorer's search box will not let you type, finds nothing, or sits on "Working on it..." forever, start here: open Task Manager and restart Windows Explorer; then open services.msc and make sure Windows Search is Running and set to Automatic (Delayed Start). If results are missing, open Indexing Options and check the folder you are searching is included; if not, add it, or rebuild the index. Here is what most guides miss: File Explorer searches fast only in indexed folders. Everywhere else, including network drives, USB drives and folders you never added, it reads every file one by one, which looks exactly like "search is broken" when it is simply slow. Knowing whether your folder is indexed tells you which fix you need.
Ethan's sister searched her Documents folder for a tax letter and got nothing, then searched her D: drive for an invoice and watched the green bar crawl for five minutes. She assumed search was broken twice over. At Jake's shop, the two problems turned out to be different. In Documents, the Windows Search service had been disabled by a "speed-up" tool, so even indexed folders searched slowly and returned nothing useful. On D:, the folder had never been indexed. Turning the service back on and adding D:\Invoices to the index fixed both: results in under a second. This page sorts out every way File Explorer search fails, and the fix for each.
None of these fixes touch your files. Restarting Explorer, the Search service or the index only changes how Windows finds files, not the files themselves.
What is wrong with search? Symptoms and fixes
| Symptom | Likely cause | Fix |
|---|---|---|
| Search box does not accept clicks or typing | Explorer or search host glitch | Restart Explorer and SearchHost |
| "No items match your search" for files you know exist | Folder not indexed, service stopped, typo or filter | Check service, Indexing Options, search scope |
| Green bar crawls for minutes | Unindexed or network location | Add to index, or search by name |
| Old, deleted or missing results | Damaged or out-of-date index | Rebuild the index |
| Explorer closes or freezes when searching | Shell extension, damaged file, index problem | Clean boot, rebuild, SFC |
| Start search works but Explorer does not, or the reverse | Different scopes and processes | Restart both; check the folder you are in |
| Search box missing | Narrow window, policy or older layout | Widen the window; check policies |
Search box does not respond or will not let you type
- Press Ctrl + Shift + Esc to open Task Manager.
- On Processes, right-click Windows Explorer and choose Restart.
- Still on Task Manager, open Details, find SearchHost.exe (Windows 11) or SearchApp.exe (Windows 10), right-click it and choose End task. It restarts automatically the next time you search.
- Open a new File Explorer window and click the search box again.
This clears most stuck search boxes. In early 2020, a Windows 10 update famously made File Explorer's search box unclickable for many people, which is what the original version of this page fixed; Microsoft repaired that bug in a later update, but the same restart steps fix similar glitches today. Our guide to restarting Explorer has more detail.
If the box works in a new File Explorer window but not in an existing one, simply close the old windows; long-running windows sometimes lose their connection to the search host after sleep or a display change, and a fresh window reconnects.
Make sure the Windows Search service is running
- Press Windows + R, type
services.msc, and press Enter. - Find Windows Search and double-click it.
- Set Startup type to Automatic (Delayed Start).
- Click Start if it is stopped, then OK.
"PC optimizer" tools and old tweak guides often disable this service to "speed up" Windows. Without it, File Explorer searches by reading every file, which is slow, and Start, Outlook and Settings search break too. That was the cause of Ethan's sister's empty results. Turn it back on and give it some time to update the index.
After restarting the service, wait a few minutes before judging search; the indexer needs time to catch up with files changed while it was off.
If the service will not start, or stops again by itself, a third-party tool or policy may be disabling it at startup. Check Task Scheduler and startup apps for "optimizer" or "debloat" tools, remove them, and run sfc /scannow before starting the service again.
Windows Search using high CPU
Sometimes the problem is the opposite: search works, but SearchIndexer.exe or Microsoft Windows Search Indexer uses a lot of processor or disk for hours. That is normal for a while after adding folders or rebuilding. If it continues for days, remove folders with constantly changing files, such as code projects or virtual machine disks, from the index, switch from Enhanced to Classic search mode, and rebuild. Disabling the service stops the usage but breaks search, so treat it as a last resort.
Indexing also pauses or slows when you are actively using the PC and on battery power, so high usage while idle is normal and settles once the index is complete.
Search not finding brand-new files
The indexer updates within seconds of a file being saved, but only in included locations, and only after it notices the change. If a file you saved a minute ago does not appear, check that it went where you think: many apps save to Downloads or their own folder by default. If it is in an indexed folder and still missing after a few minutes, check the indexer is not paused in Indexing Options. Files saved inside hidden folders such as AppData are not indexed by design, so search the app's own folder directly if needed.
The same file appearing twice
If searches show two copies of documents, one under Documents and one under OneDrive\Documents, OneDrive folder backup moved your Documents into OneDrive while an older local copy remained. Compare the two, keep the OneDrive copy if backup is on, and remove the old local folder from the index or delete it after checking nothing is missing. The same happens with Pictures and Desktop. Restored backups placed beside the originals also create duplicates.
Before deleting either copy, compare the newest dates on a few files in each; occasionally the local copy has changes that never synced, and those are worth moving into OneDrive first.
Searching another user's files
Each user's search only covers files that account can open. An administrator can browse to another user's folder under C:\Users after a permission prompt and search there, but it is slower because those files are not in the administrator's index view. On a family PC, shared files are easier to find for everyone when they live in a shared folder, such as C:\Users\Public or a folder on D: that is indexed and readable by all accounts.
Do not change permissions on another person's folders just to search them; ask them to share the files instead, which keeps everyone's privacy and avoids permission problems later.
"No items match your search"
- Check where you are searching: File Explorer searches the current folder and its subfolders only. Searching inside Documents never finds files on D:. Click This PC first to search all drives, though that is slower.
- Check the folder is indexed: open Indexing Options (search for it in Start, or run
control srchadmin.dll) and look at Included Locations. Add the folder with Modify if it is missing. - Check the search terms: search matches the beginnings of words. "voice" will not find "invoice"; use
*voice*to match inside words. - Check filters: a leftover filter such as a date or kind from a previous search narrows results. Clear the search and start again.
- Check hidden files: hidden files appear only if File Explorer is set to show them.
A quick sanity check when results look empty: type just one distinctive word from the file name, in the folder you saved it to. If that finds it, the original search was too narrow; if not, the folder or index is the problem, and the next sections fix it.
Search is very slow
Slow search usually means the folder is not indexed, so Windows reads every file, or the folder is on a network drive, NAS, USB drive or cloud location. Fixes, from quickest to most lasting:
- Search by name only: type
name:invoiceto skip reading file contents. - Turn off content search for unindexed locations: in File Explorer Options > Search, clear Always search file names and contents for non-indexed locations if it is checked; it makes non-indexed searches much faster at the cost of not searching inside files.
- Index the folder: add it in Indexing Options, as in our guide to adding folders to the search index. After the first indexing pass, searches there are near-instant.
On older hard drives, even indexed searches can slow down while the drive is busy with updates or backups; search again after the activity settles, or check Task Manager's disk use if it stays slow.
The Search tab in Folder Options
File Explorer Options has a Search tab with settings that change how searches behave. Don't use the index when searching in file folders for system files makes searches slower and more literal; leave it off. When searching non-indexed locations, you can choose Include system directories, Include compressed files (ZIP, CAB...) and Always search file names and contents. Turning on the last one makes unindexed searches very slow; turning it off restricts them to names, which is usually what you want. Click Restore Defaults if you are not sure what was changed.
These settings apply to all folders, so change one at a time and test, rather than switching several at once.
Searching inside ZIP files
By default, File Explorer does not look inside ZIP and other compressed files when searching, so a document inside a ZIP will not appear. Turn on Include compressed files on the Search tab to include them in non-indexed searches, at the cost of speed, or extract archives you search often into normal folders, which is faster and lets the index cover them.
Large archives make this especially slow, since Windows has to open each one; it is better to keep important documents outside archives and use ZIPs only for storage and sharing.
Windows 11 now opens 7z, RAR and TAR archives too, but searches treat them like ZIPs: only included when the compressed-files option is on.
Rebuild the search index
If results are wrong, old or incomplete in folders that are indexed, rebuild the index: open Indexing Options, click Advanced, then Rebuild, and confirm. Searches are incomplete until indexing finishes, which can take from minutes to hours. Leave the PC on and plugged in. Our full guide to rebuilding the search index covers the details, including a full reset when Rebuild fails.
Rebuilding is the right step when results are wrong; it is not needed for routine use, since the index updates itself as files change.
While it rebuilds, the status line in Indexing Options counts up the items indexed; once it says Indexing complete, search results are fully reliable again.
Rebuilding does not affect your files, OneDrive or Outlook data; it only regenerates the catalog Windows uses to find them.
Run the search troubleshooter
In Indexing Options, click Troubleshoot search and indexing, check the problems you see, such as "Files don't appear in search results" or "Search or indexing is slow", and let it run. It restarts services and fixes common settings automatically. On Windows 11 it may open through the Get Help app; the checks are the same.
If the troubleshooter reports that it fixed something, restart the PC before testing; some fixes only take effect after the search services restart.
It is safe to run more than once, and a second run after a restart sometimes catches a problem the first one only partly fixed.
On Windows 11, Settings also offers Privacy & security > Searching Windows > Advanced indexing options, which opens the same Indexing Options window, and an Indexing status display showing how many items are indexed and pending. If pending items stay high for days, the indexer is stuck, and a rebuild is the next step.
File Explorer crashes or freezes when you search
If File Explorer closes or hangs when you type in the search box, the usual causes are a third-party shell extension, a damaged file in the folder, or a damaged index. Try a clean boot to rule out extensions, rebuild the index, and run sfc /scannow in Terminal (Admin). Our dedicated guide to Explorer crashing on search walks through each step, and our guide to "The wait operation timed out" helps when searches end in timeouts.
If one specific folder crashes Explorer during search while others are fine, a damaged file in that folder is the likely cause; search its subfolders one at a time to narrow it down.
Preview handlers are another frequent trigger: when search results appear, the Preview pane may try to render a damaged PDF or video and take Explorer down with it. Close the Preview pane with Alt + P and search again; if the crash stops, update or repair the app that provides that file type's preview, and turn the pane back on.
Encrypted and protected files
Files encrypted with the Encrypting File System are not indexed unless Index encrypted files is turned on in Indexing Options' Advanced settings, so they do not appear in content searches. BitLocker-encrypted drives are indexed normally once unlocked. Password-protected Office documents and PDFs cannot be indexed by content, only by name and basic properties, so search for them by file name.
If you keep sensitive documents in a protected folder, such as OneDrive's Personal Vault, they also stay out of normal search results while locked. That is by design: unlock the vault first, then search inside it. For everyday files, ordinary folders on a BitLocker-protected drive give you both security and fast search.
Searching in other languages
Windows Search handles many languages, and the index uses word-breaking rules for each installed language. If searches in a second language miss words, add that language under Settings > Time & language > Language & region and rebuild the index, so its word rules are used. Searching for words with accents usually works with or without the accent, which helps when keyboards differ.
Mixed-language documents are indexed using the language of the system or the document's language setting, so a Tamil or Hindi document saved with the right language tag in Office is easier to find by its words. File names in any script are always searchable, whatever the language settings.
Search filters that make search useful
Once search works, filters make it far more precise. Type them in the search box:
kind:document,kind:picture,kind:music,kind:videolimit by type.ext:pdfor*.pdflimits to one extension.datemodified:this weekordatemodified:2025narrows by date.size:>500MBfinds big files.name:budgetsearches names only.content:"exact phrase"searches inside files.- Combine with AND, OR and NOT in capitals.
On Windows 11, the Search options or filter menu on the toolbar during a search offers the same filters with clicks.
Filters can be combined with ordinary words, such as insurance kind:document datemodified:this year, which narrows a large folder to a handful of results.
Search syntax cheat sheet
| Type this | Finds |
|---|---|
invoice | Names and, in indexed folders, contents with a word starting "invoice" |
*voice* | Any name containing "voice" anywhere |
"annual report" | The exact phrase |
name:budget | File names only, fastest |
kind:picture | Photos and images only |
ext:xlsx | Excel workbooks only |
datemodified:yesterday | Files changed yesterday |
size:huge | Very large files (Windows' size groups) |
tags:passport | Files you tagged "passport" |
tax AND 2025 NOT draft | Both words, excluding drafts |
Filters work in every folder, but they are only instant in indexed ones. In a non-indexed folder, name: and kind: filters are still much faster than plain searches because they skip reading file contents.
Keep this table handy; most people only ever need three or four of these filters, but they turn a slow, noisy search into a precise one.
Start search vs File Explorer search
Start search and File Explorer search use the same index but behave differently. Start searches everything indexed and ranks apps and settings first; File Explorer searches only the folder you are in. If a file shows up in Start but not in File Explorer, you are probably searching a different folder. If neither finds it, the location is not indexed or the index is out of date. Restarting SearchHost.exe fixes Start search glitches; restarting Explorer fixes File Explorer's.
Windows 11's Start search also shows web results by default; turn them off in Settings > Privacy & security > Search permissions if you only want your own files and apps.
A practical habit: use Start search when you know a file's name and want it fast, and File Explorer search when you know which folder it is in and want to filter by date, type or size.
When Start or Settings search is broken too
If the Start menu search panel shows nothing, will not open, or Settings search finds nothing, the search host process or Windows Search service is usually stuck. End SearchHost.exe in Task Manager's Details tab, restart the Windows Search service, and sign out and back in. If Start search stays blank after that, run the search and indexing troubleshooter and repair system files. Start search problems often travel with File Explorer search problems, so fixing one usually fixes both.
If Start search shows only web results and none of your files, check that Search my files and indexing are on under Searching Windows, and that web search is not the only option enabled.
Searching network drives and NAS
Network shares are usually not in the local index, so File Explorer reads them over the network, which is slow and sometimes times out. Use name-only searches, search smaller subfolders, or use the NAS's own search in its web interface. Some file servers provide their own index that File Explorer can use; on a home NAS, syncing important folders to the PC and indexing the local copy is often the most practical approach.
Mapped drives behave the same as network paths for search; mapping does not add them to the index.
If you search a network share often, ask whoever manages it whether server-side search is available; on business file servers it often is, and it is far faster than client-side searching.
When a network search seems to hang, check the share is still reachable by opening it normally; a dropped connection makes search wait silently until it times out.
Searching OneDrive and cloud folders
OneDrive folders are indexed like local folders, so names and properties of all files are searchable. Contents of online-only files are searchable only after they have been downloaded, because the index cannot read files that are not on the PC. Right-click folders you search often and choose Always keep on this device, or search on onedrive.com, which searches inside files online. Our guide to OneDrive explains the status icons.
Searching on the OneDrive website also finds files shared with you by others, which never appear in your PC's OneDrive folder unless you add them.
Outlook search and Windows Search
Classic Outlook for Windows uses the same Windows Search index for email. If File Explorer and Outlook searches both fail, the index or service is the common cause, and fixing it here fixes Outlook too. In Outlook, File > Options > Search > Indexing Options opens the same window; make sure Microsoft Outlook is an included location. The new Outlook for Windows searches mail online instead, so it works even when Windows Search does not.
If only Outlook search fails while File Explorer works, the Outlook data file may still be indexing or be excluded; check Outlook's own indexing status under its search tools.
Outlook's own search tools also have a Search Tools > Indexing Status option that shows how many items remain; wait for it to reach zero before deciding Outlook search is broken.
Clear or hide search history
File Explorer remembers recent searches and offers them as you type. To clear them, click in the search box and use the clear option on the recent searches list, or in older layouts, Search > Recent searches > Clear search history. For privacy on shared PCs, also review Settings > Privacy & security > Search permissions for search history on this device.
Search history is stored per user, so clearing it in your account does not affect anyone else on the PC.
If recent searches never appear at all, the search history setting may be off, which is harmless; it only affects suggestions, not results.
On Windows 11, recent searches also appear in the Start search panel, controlled separately by the search history setting in Search permissions.
Working with search results
Search results open in the same window with extra columns, such as Folder, which shows where each file lives. Sort by any column, or right-click empty space and use Group by to cluster results by type or date. Right-click a result and choose Open file location to jump to its folder. To keep a search for reuse, use Save search from the toolbar's options; it creates a saved search you can pin to Quick access, and it reruns live each time you open it.
Search results also respect your current view; switch to Details view to see the Folder column, which is often the quickest way to recognize the right file among similar names.
Results from huge searches can be copied or moved as a group: select them all with Ctrl + A in the results view and drag them into a new folder, which is a handy way to collect scattered files.
Search by tags, authors and other properties
Many files carry properties that search can use: photos have date taken and camera, music has artist and album, Office documents have authors and titles, and you can add tags to photos and documents under Properties > Details. Search for author:Ethan, artist:"A. R. Rahman" or datetaken:2019. In indexed folders these return instantly and are a powerful way to find files whose names say nothing useful.
Properties are indexed only for files in indexed locations, so tag-based searches are another good reason to add your main folders to the index.
Adding a few tags to important scanned documents, such as "tax" or "warranty", makes them findable years later even if you forget the file names.
Search box missing
On a narrow window, the search box shrinks to an icon or hides; widen the window or maximize it. If it is missing entirely, check gpedit.msc (Pro) under User Configuration > Administrative Templates > Windows Components > File Explorer for policies that remove search, and set them to Not configured. Third-party File Explorer replacements and tab add-ons can also hide or replace the search box; disable them to test.
Some tablet-friendly layouts hide the search box behind a magnifying glass icon at narrow widths; clicking it expands the box.
If the box appears but is gray and unusable on a work PC, a policy may limit search there; ask IT before changing anything.
Search with the keyboard
Press Ctrl + E or Ctrl + F in File Explorer to jump to the search box, or F3 on many keyboards. Type, press Enter, and use the arrow keys to move through results; Enter opens the selected file. Press Esc to clear the search. From anywhere in Windows, press the Windows key and start typing to search with Start instead, which is often faster for a single file you know by name.
Screen reader users can use the same shortcuts; Narrator announces each result and its folder as you move through the list.
Typing in the File Explorer address bar also works as a quick jump: type part of a folder path and Explorer suggests matches, which is often faster than searching for a folder.
Repair Windows if nothing else works
Run DISM /Online /Cleanup-Image /RestoreHealth, then sfc /scannow, in Terminal (Admin), and restart. If search is still broken, test in a new user account; if it works there, the problem is in your profile. As a last resort, an in-place repair of Windows that keeps files and apps replaces every search component.
Test search after each step rather than running everything at once; it shows which step actually fixed the problem, which helps if it ever returns.
If repair commands report errors they cannot fix, an in-place repair from a current Windows ISO replaces every search component while keeping your files and apps.
Search broken after an update
Some Windows updates rebuild parts of search or change File Explorer, and search can be slow or incomplete for a while afterward as the index catches up. Give it a few hours with the PC on. If it is still broken a day later, restart the Windows Search service, run the troubleshooter, and rebuild the index. If many people report the same problem with that update, the next monthly update usually fixes it; uninstalling the update is the short-term option.
Reliability Monitor shows when updates installed alongside any search-related errors, which helps confirm the link before uninstalling anything.
Search after restoring files or setting up a new PC
The index is not copied with your files. After restoring a backup, moving files to a new PC, or reinstalling Windows, searches are incomplete until indexing finishes. Add any custom folders, such as a second drive, to Indexing Options first so they are included in the same pass, then leave the PC on overnight. The status at the top of Indexing Options shows progress.
Searches for files you restored may also show duplicates if the backup created copies alongside originals; sort by name to spot and remove them.
Searching during indexing still works, just with gaps, so you can find most files straight away while the index fills in.
Too many results: narrow them down
Searching a whole drive for a common word can return thousands of results. Narrow the search by starting in the most likely folder rather than This PC, adding a filter such as kind:document or datemodified:this month, using an exact phrase in quotes, or excluding words with NOT. Sorting results by Date modified brings the file you worked on recently to the top, which is often all you need.
For recurring searches, a saved search with the right filters is quicker than retyping them each time.
The search box also remembers the scope you searched last; check the folder shown in the address bar before assuming a file is missing.
Searching very large drives
Searching a multi-terabyte drive of photos, videos and backups without an index can take a very long time. Index only the folders you search regularly, such as documents and photo libraries, rather than the whole drive, and leave archives and backups out. For finding files by name across the whole drive, name-only searches and filters are much faster than plain words. If you often hunt for files across huge drives, a clear folder structure saves more time than any search setting.
Removing a huge archive folder from the index often makes the remaining searches noticeably faster, because the index itself becomes smaller.
External drives you connect only occasionally are best searched directly when plugged in, rather than added to the index, which would drop their entries each time they are disconnected.
Third-party search tools
Some people use dedicated file-name search tools that read the drive's file table directly and find files by name across entire drives instantly. They complement Windows Search rather than replace it: they are excellent for "where is that file", but they do not search inside documents or Outlook. If you use one, keep Windows Search running for content search, and there is no need to index entire drives in Windows.
Choose such a tool from a well-known developer, and avoid tools that install browser extensions or toolbars alongside the search feature.
If a third-party tool finds a file that Windows Search cannot, the file's folder is probably not indexed, which is quick to fix in Indexing Options.
Email attachments and chat files
Files received in email or chat apps are not in your folders until you save them. Search for them in the app itself, such as Outlook's search for attachments or Teams' Files tab, or save important attachments into an indexed folder so File Explorer can find them later. Files opened directly from an email are usually stored in a temporary folder, which is why editing them and closing the email can lose the changes; save first, then edit.
For years of email attachments, an occasional sweep saving the important ones into dated folders keeps them findable long after the emails are archived.
Windows 10 differences
On Windows 10, the search process is SearchApp.exe, the Search tab in File Explorer's ribbon shows filters and Recent searches, and indexing settings are under Settings > Search > Searching Windows. Every fix on this page applies. Windows 10 reached end of support in October 2025, but its search works the same on PCs that still run it.
Windows 10's File Explorer ribbon also shows a Search options group with Date modified, Kind and Size buttons, which insert the same filters as typing them.
Some Windows 10 PCs also have the old Cortana search box on the taskbar; it uses the same index as File Explorer.
A monthly search health check
- Open Indexing Options and confirm the status says Indexing complete and the item count looks sensible.
- Check Included Locations still lists the folders you use, and no longer lists drives or folders you removed.
- Search for a file you know exists in each main folder to confirm results appear quickly.
- Glance at Task Manager to make sure the indexer is not busy all the time.
Five minutes once a month keeps search fast and catches problems, such as a disabled service or a forgotten folder, before you need search in a hurry. Ethan's sister added it to the same monthly reminder as her backups.
For IT admins: search on managed PCs
Policies. Search policies under Windows Components > Search control indexed paths, web results and encrypted file indexing; File Explorer policies can remove the search box. Confirm intended settings with gpresult.
Shares. For file servers, Windows Search on the server or a document management system gives users fast results; client-side indexing of network shares is not supported in most setups.
Support. Most search tickets resolve at the service, scope or index step; start there before reimaging.
Profiles. On shared or non-persistent desktops, plan index storage per user, or rely on server-side search for shared content.
File Explorer search not working: frequently asked questions
Why is File Explorer search not working?
Usually a stuck Explorer or search process, a stopped Windows Search service, or a folder that is not indexed.
Why can't I type in the File Explorer search box?
Restart Windows Explorer in Task Manager and end SearchHost.exe; then try again.
How do I restart Windows Search?
In services.msc, right-click Windows Search and choose Restart, with Startup type Automatic (Delayed Start).
Why does search say "No items match your search"?
You are searching the wrong folder, the folder is not indexed, or a filter or typo limits results.
Why is File Explorer search so slow?
The folder is not indexed, or it is on a network, USB or cloud location. Index it or search by name.
How do I rebuild the search index?
Indexing Options, Advanced, Rebuild.
Can I search inside files?
Yes, in indexed folders with content indexing on for that file type, or with content: in the search box.
How do I search all drives?
Open This PC and search there. It is slower for drives that are not indexed.
How do I search for part of a word?
Use wildcards, such as *voice* to match invoice.
Why does Start find files but File Explorer does not?
File Explorer searches only the current folder. Start searches the whole index.
How do I search network drives faster?
Search by name, search smaller folders, or use the NAS's own search.
Does search find files in OneDrive?
Names yes; contents only for files downloaded to the PC.
How do I clear File Explorer search history?
Use the clear option in the recent searches list under the search box.
Why did search stop after using a PC cleaner?
Many cleaners disable the Windows Search service. Turn it back on in services.msc.
Where is the search box in File Explorer?
At the top right, next to the address bar. Widen the window if it is hidden.
Does the search troubleshooter help?
Often. It is in Indexing Options under Troubleshoot search and indexing.
How do I find large files with search?
Type size:>500MB in the search box of the drive or folder.
How do I search by date?
Use datemodified:, such as datemodified:last week.
Why does File Explorer crash when I search?
A shell extension, damaged file or index. Try a clean boot, rebuild the index and run SFC.
What is SearchHost.exe?
The process behind Windows search panels on Windows 11. Ending it restarts search.
Does this apply to Windows 10?
Yes. On Windows 10 the process is SearchApp.exe; the other fixes are the same.
Should I use a third-party search tool?
For instant name-only search across drives, some people do. Fix Windows Search first for content and Outlook search.
How long does indexing take after adding a folder?
Minutes for small folders, hours for large collections. Leave the PC on and plugged in.
Ethan's sister finds her tax letters and invoices in a second now, and she knows why search seemed broken: one folder was never indexed, and a "speed-up" tool had switched off the service that makes searching fast. File Explorer search is one of the most useful tools in Windows when its index knows where your files are. Keep the service on, add the folders you use, and search becomes the quickest way to open anything on your PC.
📌 If you keep one line from this page
Restart Explorer, make sure Windows Search is running, and check the folder is in Indexing Options.
Indexed folders search instantly; for others, search by name or add them to the index.
Revision note. Written October 2, 2026, rewriting our 2020 fix into a complete guide for File Explorer search on Windows 11 and 10. May every file you search for appear in a second.