Do you know how to burn and ISO cd/dvd?

If your dell still functions you could try a Live linux cd. You can sample the whole system via the dvd drive and only install after you find one you like.
If interested I can suggest some that operate very much like windows.

All you have to do is download the iso file & burn it to a cd.

Rarely any issues with viruses and FREEE....

I wiped my last years laptop that had and installed a Linux OS.
Mint KDE is the one I like lately.