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

Fix PowerShell Profile Causing Blank Screen at Startup

You open PowerShell, see a blank screen with no prompt, and the window appears frozen. This usual...

Fix Microsoft Store Invalid Configuration Error

When you open Microsoft Store and get an "Invalid Configuration" error, it usually means the stor...

Fix Windows Defender Connection Timeout Error 0x80070422

If you see error 0x80070422 when opening Windows Defender or running a scan, the message typicall...

How to Fix Nginx 502 Bad Gateway Error

When you see a 502 Bad Gateway error from Nginx, it means Nginx could not get a valid response fr...

Fix SSH Permission Denied (publickey) on Raspberry Pi