Processor Maximum and Minimum state missing from Power Options

This happened to me after I installed Hyper-V on my computer. Apparently, you cannot use these advanced options and Hyper-V at the same time. I went to Control Panel > Programs > Programs and Features > Turn Windows features on or off and disabled Hyper-V.

After rebooting, everything is back to normal.

On my UX391UA I had to enable the processor power options via registry by setting

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Power\CsEnabled

from 1 to 0 as suggested in this forum post.

I too experienced the same situation Window 8 Consumer preview... But i believe this is due to and after use effect of registery cleaners i used a couple of softwares like Uniblue powersute 2013 and Advanced system care.. all latest builds.

I noticed above mentioned problem after using these 2 softwares, don't sure which one is culprit..

Found no cure rather than reinstalling window from fresh start.. Hope u got any help from my reply..