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

How to Fix 'Windows Defender Module Not Found' Error

If you see 'Windows Defender module not found' when trying to open Windows Security or run a scan...

Fix Chrome Blank Screen When Switching Profiles

If Chrome shows a blank screen (white or grey) after you switch user profiles, you're not alone. ...

Avoid Windows Activation Version Mismatch on Reinstall

You reinstall Windows, enter your product key, and get an error: “This product key does not match...

How to Unlock a File Locked by Chrome Browser

You try to rename, move, or delete a file, but Windows says it's open in Chrome. Even after closi...

Fix Windows Update Error: Port Already Allocated

You try to run Windows Update, but it fails with an error about a port already being allocated. T...

How to Fix BitLocker Module Not Found or Permission Denied Errors