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

New PC Microsoft Store Setup Checklist

When you set up a new PC, the Microsoft Store often doesn't work perfectly out of the box. This c...

Fix Outlook Token Expired Authentication Failed Error

If you see 'token expired' or 'authentication failed' in Outlook, it usually means the app's save...

How to Fix WinRAR Checksum Error and Repair Corrupted Files

You download a large RAR archive, double-click to extract, and get a "Checksum error" or "CRC fai...

Fix Chrome Profile Port Already Allocated Error

Fix Microsoft Store High CPU Usage & Error 0x80073cf0

You open the Microsoft Store, and your CPU fan spins up. Task Manager shows Store using 30-50% CP...

Fix 'Command Prompt Auto Start Registry Permission Denied' Error

You're trying to configure Command Prompt to launch automatically at startup by editing the Windo...