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

How to Free Up a Port in Command Prompt (Windows)

When an application fails to start because a port is already in use, you need to free that port. ...

Fix Windows Update Not Installing Due to Permissions

When Windows Update fails to install updates and you see permission-related errors, it's often du...

Fix Windows Defender Firewall Blocking Internet Access

If your internet stops working after a Windows update or security change, Windows Defender Firewa...

Fix 'Cannot Open as Archive' Error for 7-Zip Password Files

You try to open a password-protected .7z or .zip file with 7-Zip and get the error 'Cannot open a...

Fix Windows Search Permission Denied Errors

You type a query into the Start menu or File Explorer search bar, and instead of results, you see...

Fix nvm not working in CMD or PowerShell on Windows