
How to Fix Windows Defender Not Opening
If Windows Defender won’t open—whether it crashes, shows a blank window, or does nothing when you...
Software troubleshooting desk

If Windows Defender won’t open—whether it crashes, shows a blank window, or does nothing when you...

You may see an 'Access Denied' error when trying to open Windows Defender in Safe Mode. This typi...

If you see "Network connection problem" or "Check your connection" when opening Microsoft Store o...

If you see an error like "File locked by system" when running a Windows Defender scan or trying t...

You try to run Windows Update but get an error like 0x80072F0D or 0x80072EFD

You're trying to install a Windows 11 update, but it fails with error 0x80070643. This usually me...