
How to Fix Windows Defender Authentication Failed Error
If you see "Authentication failed" when opening Windows Defender or trying to run a scan, it usua...
Software troubleshooting desk

If you see "Authentication failed" when opening Windows Defender or trying to run a scan, it usua...

If Windows Update fails with a “cannot connect” or “permission denied” error, it usually means th...

You open Chrome to browse, but pages won't load even though other apps work. This is a common iss...

You search for a file in Windows Explorer, and instead of results, you get a 'file in use' error....

After a recent Windows update, you may see a 'permission denied' error when trying to connect to ...

You enter the 48-digit BitLocker recovery key, but the drive stays locked. The key is correct, ye...