I have just found by a grade school dumpster 2 macintosh color LC III pc's. They seem to function well but they are locked by a program called AT Ease which I was told was used on school computers so kids cannot change settings. I would like to format & reinstall an operating system but how can I bypass this At Ease as the floppy drive will not work with At Ease running so no one can boot from a boot disk. Also what operating systems can an old computer like this run. I was going to try to find an operating system for it on Ebay but not sure what it will run.