Knowledge base for software setup, errors, and daily tool work.

How to Fix a Chrome Extension That Is Not Responding

You click an extension icon, but nothing happens. Or the popup shows a loading spinner that never...

Fix Windows Security Version Mismatch Error

You open Windows Security and see an error like "Version mismatch" or "This app can't open becaus...

How to Fix Windows Defender Not Starting Automatically

If Windows Defender (Microsoft Defender Antivirus) isn't starting automatically when you boot you...

Fix Windows Defender Error 502 Bad Gateway

You open Windows Security and see 'Error 502 – Bad Gateway.' This usually means Windows Defender ...

Fix Windows Security Error 404 After Update

After a recent Windows update, you might see an error 404 when opening Windows Security. The app ...

Fix BitLocker High Memory Usage After Windows Update

Why BitLocker Memory Usage Spikes After an Update

After a Windows update, some users noti...