i am totally at wits end been working on this for over 4 days. i thought it would be a simple thing to download and install an os from a flash drive but it isn't. okay i have tried almost everything that i have found on several forums, websites and manuals but no luck. i have also downloaded and installed over 20 tool to help with this. i started off with a write protected flash, i did not know it was. took care of that. made it bootable. tried several tools to put my windows 7 64b onto it finally get to where i think i can install and no devie drivers for cd/dvd, found those and finally now i do not have the subsystem needed to install the driver i am sorry for the length but i need help please