
Fix 'Windows Security Cannot Connect to Microsoft Defender' Error
When you open Windows Security and see the message 'Windows Security cannot connect to Microsoft ...
Software troubleshooting desk

When you open Windows Security and see the message 'Windows Security cannot connect to Microsoft ...

If you see 'port already allocated' errors in Event Viewer related to Windows Defender, it usuall...

You installed a Chrome extension, but when you try to use it, you get an "access denied" error. T...

You changed your Windows password, and now Windows Update shows an authentication failed error. T...

After a Windows update, you might see the error "Command Prompt service unavailable"

If you can't sign in to OneDrive, the problem is often something simple — wrong password, cached ...