General USB problems

Remove all USB devices and cables

Click on start orb, Type Advanced System settings in the search box and click to go there.
Click on Advanced tab, Click on Enviroment Variables.

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Under the window System variables click on New.

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Type “devmgr_show_nonpresent_devices” (without the “) as the variable name and type 1 as the value.

 

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Click ok 3 times to close the windows
Click on start orb, Type Device Manager in the search box and click to go there.
Click on View, Click on Show hidden devices.
Now you can uninstall all old and unknown USB devices.
Open windows Explorer go to computer in the menu bar, Search for infcache.1 and delete it
If it still does not work remove all USB devices and then uninstall the USB controller(s) followed by a restart

 

Source:http://www.sevenforums.com/drivers/157183-bluetooth-driver.html