Cannot use USB drives to install Windows 7 OR 8. UEFI mode windows 8. I just purchased an Acer Aspire E1. E5 5. 71. G 5. 3B1 and it came without any OS. Star Trek Armada 3 on this page. I have two USB flash drives, one with Windows 7 and one with Windows 8. I had made using Windows bootable USB drive utility. I tried all of the USB ports, 2 are 2. I even changed the boot priority, but it always defaulted to the No bootable device found screen and forced me to turn my computer off. Data Files Morrowind. No matter how much I fiddled around with the settings in my BIOS, it always resulted in the same error. So, I gave up, installed Windows 8. FFmPzEf8Q/hqdefault.jpg' alt='Cannot Get Into Bios Windows 8' title='Cannot Get Into Bios Windows 8' />Legacy mode, but obviously now I cannot switch back to UEFI mode, because it gives me the same problem a before. Edit This may be important UEFI boot mode doesnt recognize ANY of my USB devices. I searched the forums but I havent found a resolution befitting my problem. Does anyone have any ideas what might be the cause and what can be done to fix itThis tutorial contains detailed instructions on how to bypass the Windows cannot verify the digital signature error in Windows 10, 8. Vista. Operating Systems Windows 8 moves to BIOSbased product keys. Product keys for Windows 8 computers arent printed on a sticker. Theyre encrypted in the BIOS. Hey guys,Just got a Corsair Force 3 120GB SSD and want to do a clean install of Windows 7 64bit on to it. However, when I get to the Where do you want to install.