drvinst.exe occupied overload Cpu in window8.1 preivew

Question

Hello
   I installed win8.1 64bit preview recently！But I found the process drvinst.exe had occupied about 30% Cpu all the time,So I can't do otherthings after I open one borwser! My PC's hardware
is well, After all everything is well when I use windows7.
Can you help me? 
 thanks!

Answer 1

I'm seeing exactly the same thing, with the win8.1 64-bit preview.

   ...Tim...