Hi Jay_Harvey,
Good day! This is Jhakesong an Independent Advisor and I will be happy to assist you with this.
You mentioned that you are trying to login to another domain. However an error was displayed upon doing so.
Here is how to join a domain.
https://www.groovypost.com/howto/join-a-windows...
Here is how to fix the error "the security database for this computer does not have a computer domain trust relationship"
https://appuals.com/how-to-fix-the-security-dat...
Standard Disclaimer: These are links to non-Microsoft websites. The pages appear to be providing accurate, safe information. Watch out for ads on the sites that may advertise products often classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the sites before you decide to download and install it.
Let me know how it goes. Have a great day!