
Windows Defender Authentication Failed: Step-by-Step Checklist
You open Windows Security and see 'Authentication failed' when trying to use Windows Defender. Th...
Software troubleshooting desk

You open Windows Security and see 'Authentication failed' when trying to use Windows Defender. Th...

When you see error code 0x80073cf3 in the Microsoft Store, it usually means the Store can't reach...

If the Microsoft Store won't load, apps fail to download, or updates get stuck, a corrupted cache...

You run Windows Update and get error 0x80070002 with a message about a version mismatch. This usu...

You open Microsoft Store on Windows 11, click download, and nothing happens—or the download start...

After installing Chrome via the offline installer, you may find that sync—bookmarks, passwords, h...