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

Fix Nginx 404 Not Found Caused by Missing Index File

If you see a 404 Not Found error in your Nginx server and the requested path seems correct, the p...

Fix Microsoft Teams Grey Screen After Update

After a recent Microsoft Teams update, many users encounter a grey screen when launching the app....

Fix FFmpeg Audio Sync Issues After Conversion

You encoded a video with FFmpeg, but the audio drifts out of sync—often noticeable as the video p...

Windows Update High CPU Usage Troubleshooting Checklist