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

Fix Command Prompt Not Working After Windows Update

After a Windows update, you might click Command Prompt and nothing happens—or it opens and closes...

How to Fix Windows 10 Activation Error Without a Key

You see a "Windows isn't activated" watermark, but you don't have a product key. Maybe you upgrad...

Why Windows Update Stuck at 100% and How to Fix It

You've waited for the update to finish, but the progress bar is stuck at 100% for what feels like...

Fix VS Code Terminal Not Opening Due to Shell Path Issue

You click the terminal panel in VS Code, but nothing happens—or it flashes and disappears. This i...

Fix PowerShell Proxy Authentication Failed Errors

UFW Deny Port But Still Accessible: Fixes and Checks

You set a UFW deny rule for a specific port, but the port remains accessible from outside. This i...