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

How to Repair Outlook PST File When It Fails to Start

If Outlook fails to start and you see errors like 'Cannot start Microsoft Outlook' or 'The file p...

How to Fix Microsoft Teams 404 Error with a Clean Reinstall

If you're seeing a 404 error in Microsoft Teams—often when opening a link or launching the app—it...

How to Fix Command Prompt Access Denied Error Code 5

When you run a command in Command Prompt and see Access Denied – Error Code 5, i...

PowerShell Command Not Found but Works in CMD

How to Fix BitLocker DNS Error on Windows 10

If you see a BitLocker error referencing DNS problems on Windows 10, it usually means the system ...

How to Break a Microsoft Teams Login Loop

You click Sign In, enter your credentials, and then Teams loops back to the sign‑in screen. This ...