Fix USB Problems Using Windows 7 Drivers
The majority of other USB problems that you might face in Windows 7 are more than likely driver-based.
There are two types of drivers concerning USB – the drivers for the device and the drivers for the USB bus in your PC or laptop. When troubleshooting problems concerning USB drivers we usually start with the drivers that shipped with the device, which will mean imagining that you have never used it before and are connecting it for the first time. As such you should follow all instructions supplied with the hardware.
Windows 7 features a large number of drivers on-board, as well as having access to Windows Update to download any additional drivers that might be required. As such finding the right driver shouldn’t be a problem, although note that the chosen device driver may not be as stable under Windows 7 as it was on a previous operating system; similarly the device driver will not prevent any hardware issues with the device causing Windows to crash.
With a new device driver installed, the majority of problems should be resolved. If not, however, you can reinstall the USB controllers, via Start > right-click Computer > Properties > Device Manager > Universal Serial Bus Controllers. Start with the USB Root Hub devices and reinstall the drivers by right-clicking and selecting Uninstall; once this is done, go to Action > Scan for hardware changes… to begin reinstallation.
One last thought – if new drivers don’t resolve the problems you’re facing, try the same device on a different computer; the problem might relate not to the hardware but to your USB cable. If you suspect this, find a good quality replacement cable.