Win7 into Device Manager find out how the Universal serial Bus controller resolves

1, press Win+r to open the run, and then enter Regedit return to open Registry Editor, if you only mouse can use the same then open folder to c:windows find Regedit.EXE double-click Open.

2, expand the following registry key in turn:

hkey_local_machinesystemcurrentcontrolsetcontrolclass{36fc9e60-c465-11cf-8056-444553540000}

3, there are a lot of "{}" in the following items, one by one point open, see the right window there is no "Universal Serial Bus Controller (Universal serial buses controllers)" These words, in the right window to find "UpperFilter" or " LowerFilter "Item and delete;

3, deleted after the restart of the computer or in the Device Manager menu, point "Operation"---"Scan detect hardware Changes", so that the system automatically reload the drive can be.

If the next encounter Win7 into the Device Manager found unable to start the Universal Serial Bus controller, directly refer to the above three steps to solve, simple and easy solution, hope to help everyone.