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

Checklist for Debugging 502 Bad Gateway in Command Prompt

You're working on a web app or API, and you get a 502 Bad Gateway error. The browser just says '5...

How to Fix Windows Defender Stuck Loading in Safe Mode

If you've booted into Safe Mode and Windows Defender won't start, shows a loading spinner indefin...

Microsoft Teams Mic Not Working After Update: Fixes

After a Microsoft Teams update, you might find your microphone stops working—no one can hear you,...

Fix Microsoft Teams Unable to Connect Due to Proxy Settings

If Microsoft Teams shows an error like "Can't connect" or "Something went wrong" and you suspect ...

Fix Windows Defender Real-Time Protection Turned Off & Connection Refused

You open Windows Security and see real-time protection is off. Trying to turn it on fails with a ...

Fix Windows Update High CPU Usage with Permission Denied Errors