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

How to Fix File Locked Error in Windows Terminal

When you see a "file locked" error in Windows Terminal, it usually means another process is using...

How to Fix Windows Defender Firewall Blocked App

You try to open an app, but it either won't start or can't connect to the internet. A common caus...

Fix Windows Security Authentication Error 0x80070035

How to Close a Locked File Handle in PowerShell

You try to delete or move a file, but Windows says it's open in another program. PowerShell can h...

Fix Windows Defender Security Center Blank White Screen

You open Windows Security (formerly Windows Defender Security Center) and see only a blank white ...

Fix Git SSL Certificate Problems: Practical Steps

If you see errors like fatal: unable to access 'https://...': SSL certificate problem: unab...