
How to Enable Windows Defender After It Failed to Start
If Windows Defender won't start, you may see an error like "This app has been turned off" or "Win...
Software troubleshooting desk

If Windows Defender won't start, you may see an error like "This app has been turned off" or "Win...

If you see an 'Access Denied' error when trying to run a PowerShell script, it's usually not a pe...

If you've reinstalled Windows 11 or moved to a new PC, you might need to restore your Microsoft S...

You try to open a page in Chrome and see "Service Unavailable" or "This site can't be reached. Se...

If you see a proxy error when running Windows Update on Windows 10, it usually means the system c...

If Windows Defender is acting up—slow scans, high CPU usage, or outdated definitions—you may need...