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

Fix Microsoft Store 404 Error on Windows 11

When you see a 404 error in the Microsoft Store on Windows 11, it usually means the store can't f...

Fix Microsoft Teams DNS Error on Windows 10

You launch Microsoft Teams on Windows 10 and see an error like "Can't connect to server" or "DNS ...

Windows Security App Not Opening After Update: Fixes

After a Windows update, the Security app may refuse to open—clicking the icon does nothing, or it...

Windows Defender Scan Stuck at Certain Percentage: Fixes That Work

If you run a Windows Defender scan and it stalls at the same percentage every time—often 85%, 93%...

Fix Command Prompt DNS Lookup Failed Error 0x80072ee7

OneDrive Sync File Locked: Step-by-Step Checklist

If you see "file locked" or "file in use" in OneDrive, it means another process or user has the f...