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

Fix Microsoft Teams Error Code cxa20001

Error code cxa20001 in Microsoft Teams usually appears when signing in or starting the app. Users...

How to Unlock a File Locked by Windows Security

You try to open, move, or delete a file, but Windows shows a message like "This file is blocked b...

Windows Security for Ubuntu Installation Checklist

Before You Install Ubuntu

If you're dual-booting Windows and Ubuntu, or replacing Windows...

FFmpeg Audio Out of Sync: Practical Troubleshooting Guide

You encoded a video with FFmpeg, but the audio drifts or starts early/late. This guide covers the...

Fixing Task Scheduler Dependency Conflicts: Common Errors

Task Scheduler errors often stem from dependency conflicts—when a task's trigger, action, or cond...

Fix Remote Desktop Authentication Failed: Network Level Authentication

You try to connect to a remote Windows machine via Remote Desktop (RDP) and get: "An authenti...