I've been trying to get a Windows 7 ISO thumb drive for awhile now. I've read many threads on forums and guides on many websites. Most of them say exactly the same things on how to get an ISO file of my Windows 7 DVD onto a thumb drive. Every one of my attempts have failed. I don't understand why it won't work! All I want is my iMac to dual boot Windows and Mac OSX. Someone please help! I own a copy of the Windows 7 Home Premium 64bit DVD. I have downloaded the Windows 7 USB DVD tool onto my friend's PC to try to get the ISO onto my 8 GB thumb drive. Since the DVD doesn't actually have an ISO file I need to create one. I did that using ImgBurn. When I fire up the USB DVD tool and select that ISO file, the program tells me that it is an invalid file and it cannot continue. I have also downloaded an ISO file of Windows 7 from an online distributor (digitalrivercontent) and this failed to work as well. WTF. I have spoken to Senior Advisors at Apple CS and Microsoft CS and both of them have not been able to help. How the hell do I get an ISO file of Windows 7 Home Premium onto my thumb drive so that I can stick it into my new optical drive-less iMac, run bootcamp, and install this crap??!