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

Fix Command Prompt Not Recognizing Commands

Windows Security Version Mismatch: Troubleshooting Checklist

If you see an error message saying Windows Security has a version mismatch, or the Security Cente...

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...

Fix 'Microsoft Store Module Not Found' Error in Windows 11

You open a Windows 11 app or try to install software, and you see an error like "Microsoft Store ...

Fix Windows Activation 'Cannot Connect' Error

If you see an error saying Windows cannot connect to the activation server, it usually means your...

Fix Microsoft Teams Audio Not Working: Practical Steps

You join a Teams meeting but can't hear anyone, or your microphone isn't picking up your voice. T...