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

Fix Windows Security Service Failed to Start Error 0x80070422

You see the error "Windows Security service failed to start" with code 0x80070422. This usually m...

Fix 'Windows Security Authentication Failed' for Domain Credentials

Fix Windows Update Not Installing Due to Low Disk Space

If Windows Update fails to install and you see an error about insufficient disk space, the fix is...

Fix slui.exe High CPU Usage During Windows Activation

If you notice your CPU pegged at 100% while trying to activate Windows, slui.exe (Software Licens...

Fix Windows Activation Command Not Found After Update

After a Windows update, you might run into a situation where the activation command (like s...