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

How to Find and Analyze PowerShell Error Logs

When a PowerShell script fails or behaves unexpectedly, the error message on screen often disappe...

How to Fix '404 Not Found' File Path Errors in CMD

How to Reset DNS Cache for Microsoft Store Issues

If the Microsoft Store won't load, shows error 0x80131500, or downloads stall, a corrupted DNS ca...

How to Fix a 502 Bad Gateway in Chrome by Clearing Cache

If you see a 502 Bad Gateway error in Chrome, it usually means the server you're...

Fix 'Port Already Allocated' Error in Windows Defender on Windows 10

You may see an error like "Windows Defender Firewall cannot use port X because it is already allo...