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

How to Disable Proxy for Windows Activation

If you're seeing error codes like 0x80072EE2 or 0x80072F8F when trying to activate Windows, a mis...

Fix OneDrive 404 Not Found & File Access Denied Errors

You try to open a file in OneDrive and see a 404 Not Found message, or you get an Access Denied e...

Fix Outlook Email Sync Failed on Ubuntu

Outlook email sync fails on Ubuntu: what to check

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

How to Fix Microsoft Teams Blank Screen on Startup

You open Microsoft Teams, see the login screen, and then—nothing. A blank white or gray screen. T...

OneDrive 504 Gateway Timeout Troubleshooting Checklist

If you see a 504 Gateway Timeout error in OneDrive, it means the server didn't respond in time. T...

How to Resolve BitLocker Dependency Conflict in Windows 10

When you enable BitLocker on Windows 10, you might see an error like “BitLocker cannot be enabled...