I have little knowledge when it comes to changing hardware, just putting that out there. Back when 7 was released as an RC, I had it installed on my secondary office computer on it's original 40 GB sata drive. When I got the full version when it was released, I decided to add another drive (a 300 gb ata), and installed 7 on that. Now, I want to swap out the 40 gb sata drive with a brand new 500GB sata drive. When I do, my system will not boot. The crappy monitor i use shifts the text from the BIOS, but i'm guessing it's telling me that the system partition cannot be found. That drive is completely empty (as far as i know), but it must be connected for windows to boot. SOOO. Who can correct my ignorance, and right my wrong? How can tell my BIOS(or whatever dictates it) that the ata drive is the system partition, and that I don't need the old 40 gb?