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

GitLab Runner Not Running Jobs: Troubleshooting Checklist

If your GitLab Runner shows as registered but never runs any jobs, or jobs stay stuck in 'pending...

Fix Outlook High CPU Usage Caused by Antivirus Scanning

Symptoms and Likely Cause

You notice Outlook consuming 50% or more CPU, making your syste...

How to Fix Nginx 404 Not Found Error

Seeing a 404 Not Found error in Nginx often means the server is running but can't locate the requ...

Fix Windows Activation Error 0x803f7001 (Rate Limit)

You see error 0x803f7001 when trying to activate Windows. The message mentions a “rate limit.” Th...

Fix Windows Defender File Locked Permission Denied Error

You try to open, edit, or delete a file and get an error like File locked by Windows Defend...