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

Windows Defender 502 Bad Gateway: Troubleshooting Checklist

If you see a 502 Bad Gateway error when opening Windows Security or trying to update Windows Defe...

How to Reduce OneDrive Sync Cache Size

OneDrive can use a lot of local disk space for its sync cache, sometimes growing to tens of gigab...

How to Enable Command Prompt When Disabled by Administrator

If you try to open Command Prompt and see a message like “Command Prompt has been disabled by you...

Docker Daemon Not Running After Installing Docker Desktop

You installed Docker Desktop, but when you open the application, the Docker daemon never starts—t...

Fix Pip Permission Denied After Python Upgrade

Check Which Process Is Using a Port on Windows

When a service or application fails to start because a port is already in use, you need to identi...