
Windows Defender Service Troubleshooting Checklist
If Windows Defender won't start, won't update, or shows error messages like "Service stopped" or ...
Software troubleshooting desk

If Windows Defender won't start, won't update, or shows error messages like "Service stopped" or ...

When Windows Defender tries to update, you might see error 0x800f0906. This usually points to mis...

You try to open a file on a BitLocker-encrypted drive and get an error saying the file is locked ...

You open Chrome and get an 'Access Denied' or 'Profile Error' message. Your bookmarks, passwords,...

If Windows Defender refuses to start or update with an error about a dependency conflict, it's of...

You type microsoft teams or teams in the terminal and get command...