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

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 'Windows Defender Not Recognized' Error in Command Prompt

Fix Microsoft Teams 'Module Not Found' Error

You open Microsoft Teams and see an error: Module not found. This typically mean...

How to Fix Windows Defender File Locked Error

When Windows Defender (Microsoft Defender Antivirus) locks a file, you typically see an error lik...

Fix Chrome Profile Permission Denied Error on Ubuntu

You try to launch Google Chrome on Ubuntu and get an error like 'Permission denied' or 'Failed to...

Fixing Microsoft Teams Dependency Conflicts

If Microsoft Teams fails to start, crashes, or shows errors after an update, a dependency conflic...