Ok, it's just that you called it an "old XP machine", which made me think you thought the OS (XP) was somehow important...it's not. Linux technically runs on a much more varied range of hardware than any other OS, because it is so lightweight and unbloated.
In any case, if you have backups and a Windows install CD, you can't make any irreversible changes. Alternatively, why not go and get a cheap internal hard drive and install Linux on that? Then if you want to switch back to Windows at some point, you can just switch hard drives.
In any case, if you have backups and a Windows install CD, you can't make any irreversible changes. Alternatively, why not go and get a cheap internal hard drive and install Linux on that? Then if you want to switch back to Windows at some point, you can just switch hard drives.
