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

How to Clear the Microsoft Store Cache to Fix Common Issues

If the Microsoft Store fails to load, hangs on a blank page, or throws error codes like 0x80072ef...

How to Fix Git Push Rejected Non-Fast-Forward Error

You try to push your local commits to a remote repository, but Git rejects the push with a messag...

Fix Windows Defender Service Not Starting (Error 404)

If you see error 404 when trying to start Windows Defender, it usually means the service executab...

Postgres Password Auth Failed: Trust vs md5 Explained

If you're seeing FATAL: password authentication failed for user when connecting to P...

Fix Windows Defender 502 Bad Gateway: Tool Usage Tips

When Windows Defender returns a 502 Bad Gateway error, it usually means the security intelligence...

Fix Windows Activation Command Error 0x80070002