USB flash drive won't work on one pc but works fine on another

Method 1:

• Go to Start>> Right click My Computer>> Manage>> Disk Management

• Check to ensure that there is a drive letter assigned to the drive. If there is not, right click the drive and select "Change". Then, see if you can assign a drive letter to this drive.

Method 2:

• If the device is listed in Disk Management and has an assigned drive letter, you can try right clicking the device again and this time select "Explorer". Windows Explorer should now be invoked and should display the device and any content within.

Method 3:

• Go to Start>> Right click My Computer>> Manage>> Device Manager

• Expand the USB Controller section

• Right click and Uninstall all of the listed USB devices

• Reboot the system

Method 4:

• Try connecting the device directly to the USB port and not through a USB hub to see if that makes a difference.

Method 5:

• Remove any USB extension cable and try plugging in the USB device directly to the USB port. Possibly, try a different cable.

Method 6:

• If the USB device does not have an auxiliary power supply, try connecting it to the system before the boot process and after then after the boot process.

Method 7:

• If the USB device has its own auxiliary power supply, try using it with its power on before the boot process and then off during the boot process. Try it on and off after the boot process.

Method 8:

• If the problem device is an external HDD, try using the manufactures diagnostic utility (if available) to see if the device is functioning correctly.

Method 9:

• If your problem USB device is connected to a PCI card, try changing it from one slot to another.

Method 10:

• Try applying an update (if available) of the problem USB device from the manufactures web site. Also, check to see if there has been issues with this device. There may be a chipset driver update or BIOS update available for your Motherboard that could solve the issue.