I bought the Bible program on a CD off a website that was a one man operation. Years after the initial purchase, a very exclusive commentary by a man I'd heard and met, became available. I bought it from the one man operation's website in digitized form. It downloaded seamlessly.
But the man who owned the website passed and the website ceased to exist. The website was the only known source for the digitized commentary. Until then, I was able to download it to two other computers. But it's now unavailable.
What is the name of the study program? Nearly everything is available in the history of computing via torrents. I am sure you, or someone here, could find it. Being that it was a CD then you can probably just copy the installed location and run it. Give it a try running it on another computer.
It may be worth the money just taking it in to a professional shop that will have the skill and hardware for cloning hard drives if that program is essential for you. Get it fixed up, shut off the internet on that machine, then just get a cheap laptop top for browsing the web, email, and ‘productivity’ stuff. As others have mentioned linux. If you don’t have any other specific windows only programs a linux installation will have everything you need. I am forced to use MS as my design and engineering software only works on Windows. But if I didn’t need that a linux laptop would be just fine for anything I need.
you still might be able to find it.... try here... https://web.archive.org/