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

Windows Security for Ubuntu Installation Checklist

Before You Install Ubuntu

If you're dual-booting Windows and Ubuntu, or replacing Windows...

How to Fix Microsoft Store 502 Bad Gateway on Windows 11

If you see a '502 Bad Gateway' error when opening Microsoft Store on Windows 11, the store can't ...

How to Fix BitLocker Recovery Key Not Accepted

You've entered the 48-digit recovery key, but Windows says it's not accepted. This is a frustrati...

How to Fix '404 Not Found' File Path Errors in CMD

Fix 'Command Not Found' in Task Scheduler on Windows Server

When a scheduled task on Windows Server fails with a 'command not found' error, the task typicall...

How to Reinstall PowerShell to Fix Startup Failure

If PowerShell fails to start or crashes on launch, it can block scripts, automation, and administ...