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

Fix Windows Update Service Not Running After Malware Removal

After removing malware, you may find that Windows Update no longer works. The service might be di...

Fix Windows Activation Error After Clean Boot

You've performed a clean boot to troubleshoot a problem, and now Windows reports an activation er...

Fix Microsoft Teams Token Expired by Clearing Cache

If you see a 'token expired' or 'sign-in error' message in Microsoft Teams, it often means the st...

How to Set Up Windows Update to Avoid Rate Limit Errors

If you see a rate limit error when running Windows Update, it usually means your system is making...

Fix Windows Store Error 0x80073cf9: Clear Cache & Repair

You try to install or update an app from the Microsoft Store, and you get error 0x80073cf9. Usual...

Fix Outlook Email Sync Failed on Ubuntu

Outlook email sync fails on Ubuntu: what to check

If Outlook (via web browser, Evolution,...