the new malwarebytes wants to connect to the server to download database,
https://www.h3xed.com/windows/how-to-install-and-update-malwarebytes-without-an-internet-connection
above shows how to accomplish this, but you need a working pc to download and update malwarebytes and then transfer to the non internet connected pc.
I was thinking...about if I reinstall xp?...but I don't know how to do itthe new malwarebytes wants to connect to the server to download database,
https://www.h3xed.com/windows/how-to-install-and-update-malwarebytes-without-an-internet-connection
above shows how to accomplish this, but you need a working pc to download and update malwarebytes and then transfer to the non internet connected pc.