Hi all. I'm getting an error, but not seeing a viable solution anywhere online. Last year, I had upgraded from Windows Vista on my laptop to Windows 7. To do this, I purchased the .iso from Microsoft's website. I burned it to a disc and everything worked perfectly. This year, while doing my annual reformat, I got the following error message: "A required CD/DVD drive device driver is missing. If you have a driver floppy disk, CD, DVD, or USB flash drive, please insert it now. Note: If the Windows installation media is in the CD/DVD drive, you can safely remove it for this step." I have tried restarting multiple times. I have tried reinstalling Vista then doing an upgrade. I have tried using inserting the Vista install disc to load the drivers from. I have tried updating the BIOS and drivers settings, as many other forums have said. I know that my disc is valid and works, as it worked for me last year. As a separate note: I ***do not*** have a 4gig flash drive, nor do I have the funds this year to purchase one (just had a kid and daycare is a pain). It seems like the flash drive method works for everyone else, so nobody bothered posting a fix that doesn't require additional purchases. Any help? Thanks!