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

Fix Windows Update Error 0x80070002

When Windows Update fails with error 0x80070002, it usually means the update installer can't find...

Fix Windows Defender Access Denied in Safe Mode

You may see an 'Access Denied' error when trying to open Windows Defender in Safe Mode. This typi...

Fix Windows Security Loading Forever Error

You open Windows Security and it just spins—loading forever. This is a known issue on Windows 10 ...

Fix Chrome 'Invalid Configuration' or 'Permission Denied' Errors

If you see 'Invalid configuration' or 'Permission denied' when starting Chrome, the browser is us...

Fix Windows Security Authentication Error 0x80070035

How to Fix Windows Security Service Not Running

If you see an error that the Windows Security service is not running, the Security Center or Wind...