I recently installed Windows 7 on a new SSD. I was planning to format my old HD, which still had Windows XP and all my data on it, but everything seemed to be working just fine, so laziness (and fear of losing data I may have forgotten to back up) prevailed. But my computer just did the Blue Screen of Death, so now I'm worried.
Is the old OS on the old HD likely to interfere with the new OS? Do I need to format that drive?