For the last month I have been randomly seeing this message pop up when booting up. Sometimes I have to reboot it 5 or 6 times before it will boot into windows. When it doesnt boot it tells me this and that is missing and gives a bunch of numbers and letters. These drives are fully updated and I finally decided to try doing a secure errase on both drives to reset them. Then did a fresh windows 7 64 install and for about 2 weeks they worked fine so I thought that had solved the problem. Well last night went to boot up and same problem again. So I assume at this point the one drive is on its last legs. Anybody else ever run into this with a C300? Any fix's or do I just need to do an RMA?