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

Stop Command Prompt High CPU Usage When Idle

You open Task Manager and see Command Prompt (cmd.exe) using 20-40% CPU, even though no windows a...

Fix Windows Update Version Mismatch Error

When you see a version mismatch error in Windows Update, it usually means the update files on you...

Fix VirtualBox Kernel Driver Not Installed on Windows 10

Fix OneDrive Sync Settings That Reset After Update

After a Windows or Office update, you might notice that your OneDrive sync settings have reverted...

How to Reinstall Windows Defender After Error 404

If you see a 404 error when trying to open Windows Defender, it usually means the app's files are...

Windows Security App Missing in Windows 11: How to Restore It

If you open Start and type 'Windows Security' but nothing appears, or you get an error when tryin...