
Reset Windows Defender Service to Default Settings
If Windows Defender isn't starting, showing errors, or acting strangely, the service settings may...

If Windows Defender isn't starting, showing errors, or acting strangely, the service settings may...

You open Windows Defender and see an authentication failed error. This often happens after a fail...

You plug an external drive into a different computer and see a BitLocker version mismatch error. ...

You try to open Windows Security (Windows Defender) and see a network error like “Something went ...

After a recent Windows or Office update, you might see “OneDrive sync is unavailable” or the sync...

If you see 'invalid configuration' or 'permission denied' when opening Chrome, your user profile ...