I'm installing a CanoScan LiDE 70 on Windows 7 64 build with an AMD processor. I've tried from the disc, from freshly downloaded drivers from Canon and the computer can't seem to find them. I've tried pointing the computer to the drivers and they're even hard for me to find. When I install drivers from the cd I get the error message that the drivers have to be installed manually. Plus every usb port I use to reinstall initially recognizes the scanner, then after the drivers fail to install that usb port no longer recognizes the scanner is plugged into. I'm running out of usb ports. Is there a way to reset the usb ports back to default? Any advice would be appreciated. Thanks