
Windows Defender Setup Checklist for New PC
When you set up a new PC, Windows Defender (now called Microsoft Defender Antivirus) is already a...

When you set up a new PC, Windows Defender (now called Microsoft Defender Antivirus) is already a...

When you open Services.msc and see that the Windows Update service (wuauserv) is not running, or ...

When Windows Defender fails to update its virus definitions, you may see error codes like 0x80240...

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

You open Microsoft Teams and see a 502 Bad Gateway error. This usually means you...

When OneDrive stops syncing, it's often due to a misconfiguration or a conflict. This checklist h...