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

Fix NET::ERR_CERT_AUTHORITY_INVALID via Chrome Enterprise Policy

If you see NET::ERR_CERT_AUTHORITY_INVALID in Chrome on a managed device, the is...

Bluetooth Hardware Not Found on Windows 11: Fixes

You open Bluetooth settings in Windows 11 and see 'Bluetooth hardware not found' – no swi...

Fix Nginx 502 Bad Gateway on Docker Ubuntu

Fix npm Global Install Permission Denied Without Sudo

When you run npm install -g and see "EACCES: permission denied", it's be...

Fix Docker Compose Environment Variable Default Value Not Used

You define a default value for an environment variable in your docker-compose.yml file, but when ...

Fix Windows Cannot Access Shared Folder: Advanced Sharing Settings

You try to open a shared folder from another PC on your network, but Windows shows an error: "...