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

How to Fix Windows Update Error 0x80070002 Due to Network Issues

If you see error 0x80070002 when checking for updates, and your network connection seems unstable...

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 ...

How to Fix OneDrive Login Loop Not Working

You enter your OneDrive credentials, the window spins, and then it prompts you to sign in again. ...

How to Fix Outlook Rate Limit Error in Office 365

Understanding the Error

You may see a message like "Too many requests" or "Server busy" ...

Fix WinRAR Checksum Error on Windows 10

If you see a 'Checksum error' or 'CRC failed' message when extracting a RAR or ZIP file in WinRAR...

Fix Windows Activation Version Mismatch After Upgrade

After upgrading Windows—whether from Home to Pro or from an older build to a newer one—you might ...