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

Nginx Upstream Connection Refused: Diagnosis and Fixes

When Nginx returns a 502 Bad Gateway or logs "upstream connection refused", it means Ngin...

Fix Windows Security App Configuration Error

When you open Windows Security and see a message like "Your IT administrator has limited acce...

Fix Windows 11 Bluetooth Error 0x00000001

If you see error code 0x00000001 when trying to turn on Bluetooth or pair a device in Windows 11,...

Fix Node Version Incompatible with npm Package Error

Fix Error 0x80070080 When Windows Update Stuck

You see error 0x80070080 and Windows Update hangs at a certain percentage. This usually means a p...

Fix VS Code Terminal Not Opening Due to Settings

You click the terminal panel icon in VS Code, but nothing happens. The panel doesn't slide up...