Fix PDF Preview in File Explorer on Windows 11 (25H2 and Later)
File Explorer stopped previewing PDF files on Windows 11 after the October 2025 update (KB5066835), and it did it on purpose: the update ma...
Category: IT Admin
Stop Edge Opening PDFs (and Fix Edge Not Opening PDFs)
To stop Microsoft Edge opening your PDFs, change the Windows default app first: Settings → Apps → Default apps, search .pdf , and pick Adobe...
Logeshwaran
Windows Activation Error Codes: Every Code and Fix (2026)
Windows activation error codes look random, but almost every one of them falls into one of five causes: no valid license for this device (0x...
Logeshwaran
Keep Windows 11 and 10 Up to Date: The Five Layers the Green Tick Misses
Keeping a Windows 11 or 10 PC up to date is five separate jobs that most people think are one: Windows itself (Windows Update), the drivers...
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What Is Windows Hello? Face, Fingerprint, PIN and Shortcut
Windows Hello is the built-in, free way to sign in to Windows 11 and 10 with your face, your fingerprint or a PIN instead of a password. You...
Logeshwaran
Reset Windows Firewall to Default in Windows 11 and 10 (and Across a Fleet)
Resetting Windows Firewall puts every rule, every profile setting and every exception back to the way Windows shipped, and it takes one cli...
Logeshwaran
Recycle Bin Missing or Always Empty in Windows 11 and 10: Every Fix, Plus Policies
The Recycle Bin is missing from the desktop in Windows 11 or 10 for one of four reasons, in this order of likelihood: the desktop icon was ...
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Windows 11 Won't Shut Down? Fast Startup, Hung Apps, Wake Devices, Fixed
Windows 11 or 10 won't shut down , hangs on "Shutting down…", turns itself back on, or restarts instead of powering off, and i...
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Link Your Windows 11 License to a Microsoft Account
To link your Windows license to your Microsoft account, go to Settings → System → Activation on Windows 11 (Update & Security → Activati...
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Enable USB Write Protection in Windows 11 and 10: Every Way
You can make Windows 11 or Windows 10 refuse to write to any USB drive plugged into a PC, so nobody can copy files off it onto a stick, in f...
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Account Lockout Policy in Windows 11 and 10: Set and Unlock
An account lockout policy makes Windows lock an account after a set number of wrong passwords, for a set number of minutes. You can set it o...
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Remote Shutdown in Windows 11 and 10: Command, PowerShell
The Windows remote shutdown command is the same shutdown command you use locally, pointed at another machine. To shut down or restart anothe...
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Mouse Slow or Laggy in Windows 11 and 10: Every Fix
If your mouse is moving slowly in Windows 11, go to Settings → Bluetooth & devices → Mouse and drag Mouse pointer speed to the right; t...
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Power Plans in Windows 11 and 10: Switch, Restore the Missing Ones, Manage a Fleet
Switching power plans in Windows 11 and 10 used to be three clicks in Control Panel, and on most laptops made since about 2020 those clicks...
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Reset Microsoft Edge: Settings, Repair, Profile, and the Managed Banner
Resetting Microsoft Edge takes one page ( edge://settings/reset ) and undoes the things that usually go wrong with a browser: a hijacked ho...
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Disable UAC in Windows 11, 10 and Server: Every Method
To disable UAC prompts in Windows 11 or Windows 10, press Win + R , type UserAccountControlSettings , and drag the slider to the bottom, Ne...
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Lock Screen Camera and Camera Locked in Windows 11 and 10
If your camera shows a padlock or says it's locked on Windows 11, press the key with a camera icon on your keyboard (often F8 or F9, som...
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List All User Accounts in Windows 11 and 10 (and Find the Hidden Admins)
Listing the user accounts on a Windows 11 or 10 PC takes one command ( net user ), and the list it returns surprises almost everyone the fi...
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File History in Windows 11 and 10: Turn It On, Add Folders, Restore Versions
File History is the backup feature that has quietly shipped with every Windows since 8, keeps versions of your documents and photos on an ...
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System Configuration in Windows 11 and 10: One PC or a Whole Fleet
Your system configuration is the list of what your computer is made of and what it runs: processor, memory, storage, graphics, firmware, Wi...
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