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

How to Fix Remote Desktop Connection Refused Error

When you try to connect to a remote PC and see "Connection refused" or "The connection was refuse...

Fix Windows Defender Error 0x800704ec

You see error 0x800704ec when opening Windows Defender or Windows Security. The message says auth...

PowerShell Try Catch Not Working: Fixes and Common Pitfalls

You've wrapped a command in a try/catch block, but when an error occurs, the catch block doesn't ...

How to Reset Windows Activation Cache with a Script

If Windows shows activation errors after a hardware change or update, the activation cache might ...

Fix SSH Permission Denied (publickey) on Raspberry Pi