Why Won T My Usb Work. If youve previously set a drive letter for the USB and then plugged it into a machine with that drive letter already allocated to another device it wont be recognised. Many computers have more than one USB port so a good way to rule out a single broken port is to unplug your USB device and try it in different ports.

Press Windows key X. Many computers have more than one USB port so a good way to rule out a single broken port is to unplug your USB device and try it in different ports. Too many filesonly plays the first 20.
When I try booting from USB the.
Another problem has to do with a faulty USB port. Click Device Manager once it appears. Right-click the icon to update the driver. Too many filesonly plays the first 20.

