When I got ready to reinstall Windows Media, I could not FIND the disc. I have Windows Home on another computer. My question is, if I make a backup image from the other computer..can I then install it on the one with the missing disc? No.Expanding on that "No." somewhat, there is nothing physical to stop you making (say) a Norton Ghost image of a hard drive with a Windows installation on it, and restoring it to a different machine. But it probably wouldn't work, most likely wouldn't even BOOT, unless the machines were 100% identical (even then you would have activation issues) and anyway it would be against the terms of a single machine Windows licence unless you immediately removed Windows from the other machine. The word "illegal" is often USED to describe such a situation. Rather loosely in my opinion. In my country, breaking a shrinkwrap EULA may be copyright "illegal" (civil) depending on what a court might say, rather than BURGLARY illegal (criminal) but no matter. No help to BREAK Microsoft EULAs on here.