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

Fix VS Code Permission Denied After Update

After updating Visual Studio Code, you might see 'permission denied' errors when trying t...

Fix 'git remote origin already exists' Error in GitLab

Fix Explorer.exe Keeps Restarting in Windows 10

If your File Explorer (explorer.exe) keeps restarting on Windows 10, you'll see the taskbar a...

Fix Chrome Hardware Acceleration Black Screen in Windows 11

If Chrome shows a black screen on Windows 11, especially after an update or when playing video, h...

Fixing Nginx Upstream Connection Refused on Port 443

You see "upstream connection refused" in your Nginx error log when proxying requests to p...

Cloudflare DNS Not Propagating for Subdomain: Fixes

You added a subdomain record in Cloudflare DNS, but it still resolves to the old IP or nothing at...