I am having a problem with what we call legacy pcs. i.e the cic tower pcs. we have a couple down here at the hospital and about 6 of them have come out with “disk boot failure. Insert system disk and press enter”. I tried re-installing the OS but this has failed. I have been seraching for a website where I can download an anti virus boot disk to use and I have so far come up against a blank wall. can anyone point me in the right direction.