Some users are experiencing problems with their USB flash drive even when they have been guaranteed that they are compatible with Windows Vista. This is usually due to the wrong software drivers being installed. When you plug in your USB flash drive for the first time you may be required to install the drivers for it, however most USB flash drives do not come with a CD containing their drivers. The majority of drivers for USB flash drives will already have been installed with Windows Vista, so when you are asked to install the driver software for your USB flash drive select Locate and install driver software and then on the next screen choose I don’t have the disc. Show me other options, unless you do have a disc with the driver software on it, in which case allow Windows Vista to search the CD for the correct driver. Assuming that you do not have a CD with the software on it, choose Browse my computer for driver software and then instruct Windows Vista to look for the driver software on the hard drive where you installed Windows Vista. Make sure that the Include subfolders checkbox has been checked and then press Next to search your hard drive for the driver software. Once the software has been found a window may appear telling you that Windows cannot verify the publisher of the software, and as long as you are confident that the drivers are correct, select Install this driver software anyway. You may need to repeat these steps two or three times as new USB devices are found and it is important that you complete these steps for every device, otherwise your USB flash drive will continue to not be recognised.
If you plug in your USB flash drive and you are not prompted to install a driver for the new hardware then drivers may already be installed, however they may be the wrong drivers or out of date. To delete the drivers so that you can install the most recent and correct version open the Start menu and right-click on Computer and select Properties. Click on Device Manager and then expand Universal Serial Buscontrollers to display all the USB devices connected to your computer. Right-click on your USB flash drive (it must be plugged into your computer to show up here) and then select Uninstall. You may need to uninstall and reinstall Genetic USB Hub and other USB controllers as well to fix the problem. Once the device has been uninstalled right-click on Universal Serial Bus controllers and then select Scan for hardware changes and this will begin the new driver installation process described at the beginning of this article. It is worth checking the web site of your USB flash drive manufacturer, as the latest software driver may be available there for download.
If your USB flash drive is still not working correctly make sure that the file usbstor.inf is in the C:\Windows\inf folder. If it is not then open the Start menu and type cmd in Start Search to bring up the command prompt. Type in cd\ to get to the C:\ drive and then type in dir usbstor.inf /s and make a note of where usbstor.inf is located. Open up a window and navigate to the location of the file and then copy and paste it into the C:\Windows\inf folder and then restart your computer. Your USB flash drive should now work correctly.