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

Fix Microsoft Teams Screen Sharing Not Working

You start a meeting, click Share, and nothing happens—or attendees see a black screen. This is a ...

How to Fix Windows Security Error 0x80073b01

You may see error 0x80073b01 when opening Windows Security or trying to use its features. It usua...

OneDrive Large File Configuration Checklist

If you work with files over 250 MB in OneDrive, you may encounter sync stalls, timeouts, or uploa...

Fix Windows Activation File Locked by Antivirus

If you see an error like “Windows activation file locked by antivirus” or activation repeatedly f...

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 'Chrome Profile Path Not Found' or 'Missing Profile' Error