Qualcomm Usb Driver for Windows 8.1 64 Bit

Hi Paul,

I can imagine the inconvenience you are experiencing at this moment. I suggest you to follow the steps mentioned below and check if it helps.

What is the make and teladan of the computer?

Method 1

Run the fixit using the link below as it can automatically diagnose and fix problems with hardware.

Hardware devices are not working or are not detected in Windows

http://support2.microsoft.com/mats/hardware_device_problems/?wa=wsignin1.0

Method 2

Performing Windows updates. Running Windows Update will check for operating system updates required for your computer. You may refer the steps mentioned below to check for updates. If you find any pending updates then install and check.

Windows Update: Frequently Asked Questions

http://windows.microsoft.com/en-US/windows-8/windows-update-faq

Method 3

If still the issue persists then update the Chipset driver and update the
BIOS from the manufacturer’s website.

Note:
Modifying BIOS/ complementary metal oxide semiconductor (CMOS) settings incorrectly can cause serious problems that may prevent your computer from booting properly. Microsoft cannot guarantee that any problems resulting from the configuring of BIOS/CMOS settings can be solved. Modifications of the settings are at your own risk.

Hope this helps. Please let us know the prestise of the issue.

They are part of the motherboard chipset drivers which you get from here..

http://www.msi.com/support