Help, please!

My desktop computer is infected with malware, a virus, etc., which prevents it from accessing the Internet.

I downloaded SpyBot using my laptop and then installing the executable file on the desktop computer. When I run SpyBot on the desktop, it tries to download data files, but of course it can't access the Internet because of the malware, etc.

How do I download the data files so that I can run SpyBot?

Thank you.