Display brightness not working after installing Windows 10 May 2019 update [Solution that might work]

Windows 10 May 2019 update was released for general public today. As soon as it was released for public we had shared the iso download links for windows 10, version 1903 but users who started installing the update has reported that display brightness is not changing after installing this latest Windows 10 May 2019 update. 

If you are one of the users experiencing this issue, then don't worry because Microsoft says,  it was a known issue. 

Here, is what Microsoft says..

Microsoft and Intel have identified a driver compatibility issue on devices configured with certain Intel drivers. After updating to Window 10, version 1903, brightness settings may sometime appear as if changes applied took effect, yet the actual display brightness doesn't change.

To safeguard your update experience, we have applied a compatibility hold on devices with certain Intel drivers from being offered Windows 10, version 1903, until this issue is resolved.

But some users have already downloaded and installed the update, if you are one of them, then there is a simple workaround available..

Restart your PC, and you can see its fixed.

Try it and you might find its working.