Desktop USB port not workin anymore why?

[AnaMika]

Hi,
From last 2 days my USB port has stopped working.
None of these port recognizes my Flash drive or my external hard disk.
I don't know where should I look for the solution.

[Geo3213]

Go into the Device Manager and make sure the port is enabled.
One more thing check out if your driver is properly install. Try installing USB driver again.

[Dino.M]

If the device displays in Device Manager, the USB port is working properly. There is a physical problem with the device or there is an issue with the device software drivers. Try disconnecting the USB device, closing any software for the device that may be open, uninstalling the USB device software driver, and then reinstalling the driver. Connect the USB device to the computer after the software drivers are installed. Refer to the device manufacturer for more information.