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

How to Fix Network Errors in Command Prompt on Windows 10

UFW Port Closed Despite Allow Rule: Fixes

You've added a UFW allow rule for a port, but a port scan or service test shows the port is still...

OBS Black Screen Troubleshooting Checklist

You launch OBS Studio, start a scene, and the preview shows a black screen. This is one of the mo...

Microsoft Teams Connection Timeout: Troubleshooting Checklist

If Microsoft Teams frequently shows “connection timeout” errors or won’t connect at all, the prob...

Checklist for Task Scheduler Auto Start Not Working

You set up a task in Windows Task Scheduler to run automatically at boot or on a schedule, but it...

How to Unlock BitLocker Drive in Ubuntu Terminal

If you have a BitLocker-encrypted drive from Windows and need to access it in Ubuntu, the termina...