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

Fix PowerShell Settings Reset After Windows Update

After a Windows update, you may find that your PowerShell settings—such as execution policy, prof...

Fix Putty Connection Refused on Port 22

You try to connect to a remote server with Putty on port 22, but you get 'Connection refused'. Th...

Fix kubectl Apply Forbidden in AKS: Permission Denied

Troubleshoot 502 Bad Gateway with Curl Commands

A 502 Bad Gateway error means your server (gateway) got an invalid response from an upstream serv...

Fix Microsoft Teams Screen Sharing Not Working on Ubuntu

Screen sharing in Microsoft Teams on Ubuntu often fails silently—your audience sees a black scree...

Windows Update Stuck at 100% After Restart: How to Fix

You restart your PC after a Windows update, but it hangs at "100% complete" for 10 minutes or mor...