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

Fix 'Windows Security App Not Installed' on Windows 10

You open the Start menu, search for Windows Security, and nothing shows up. Or you see a message ...

How to Find Command Prompt Output Log File Location for Troubleshooting

When troubleshooting command-line issues, you often need to review the output from Command Prompt...

Fix Nginx 502 Bad Gateway for WordPress

If you see a 502 Bad Gateway error when visiting your WordPress site running on Nginx, it usually...

Fix Microsoft Teams 502 Bad Gateway Error When Joining a Meeting

When you try to join a Microsoft Teams meeting and see a 502 Bad Gateway error, ...

Fix Command Prompt Error 0xc0000142 on Windows

When you try to open Command Prompt and see "failed to start error code 0xc0000142", it usually m...

Fix Command Prompt Service Unavailable After Update