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

Windows Update Cleanup Tool Not Removing Files: Fixes

You run Disk Cleanup, check "Windows Update Cleanup", and it seems to work—but the disk space doe...

Fix Windows Update High CPU Usage and Error 0x80070002

When Windows Update runs, you may see high CPU usage and eventually error 0x80070002. This usuall...

Fix Windows Search Not Working After Update

After a Windows update, you might click the Start menu or press the Windows key and type, only to...

Certbot Renewal Failed Due to Nginx Configuration: How to Fix

Create a New Firefox Profile When Your Old One Goes Missing

If Firefox fails to start or you see a message that your profile is missing, it's often due to a ...

Windows Defender Not Opening on Windows 11: How to Fix

If you click the Windows Defender icon or search for it and nothing happens, you're not alone. Th...