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

Fix Error 0x800f081f During Windows 11 Update

While updating Windows 11, you may encounter error 0x800f081f. This usually appears when the upda...

How to Set Proxy in Command Prompt (Windows)

If you need to route traffic through a proxy server on Windows, you can set proxy settings direct...

Fix Windows Terminal Proxy Error: Connection Refused

If you see 'connection refused' when using Windows Terminal behind a proxy, the terminal is likel...

How to Fix Remote Desktop Blank Screen After Connecting

You connect to a remote Windows machine via Remote Desktop (RDP), authentication succeeds, but yo...

Chrome Port Already Allocated: Troubleshooting Checklist

When Chrome displays a 'port already allocated' error, it means another process is using the port...

Fix SSH Permission Denied (publickey) on Raspberry Pi