
Fix Windows Defender 404 Not Found After Update
After installing a recent Windows update, some users find that Windows Defender is missing or sho...
Software troubleshooting desk

After installing a recent Windows update, some users find that Windows Defender is missing or sho...

You’re trying to sign in to Windows and the “Windows Security” window appears, but it eventually ...

When you try to back up files using Windows Security (Windows Defender) or the built-in backup to...

You try to connect to a remote PC and get an authentication error. The connection fails, often wi...

You try to connect to a Windows 10 PC via Remote Desktop, but the connection fails. The error mig...

If Windows Update fails with errors like 0x80070005 or 0x80246007, the problem might be permissio...