
Windows Security App Not Working After Update: Fixes
After a Windows update, the Windows Security app may fail to open, show a blank screen, or displa...

After a Windows update, the Windows Security app may fail to open, show a blank screen, or displa...

You see "handshake did not complete after 5 seconds, retrying" or "peer not responding" in your W...

You open Windows Security and see the message: "Invalid configuration" or "Something went wrong. ...

If your Windows Security offline installer fails to sync or update, you may see errors like "Sync...

You may see a 'permission denied' error when Windows Security interacts with other security softw...

After a Windows update, you might see that Windows Defender (now called Microsoft Defender Antivi...