SOLVED Windows stopped "seeing" all 4 cores

[confused]

This is what im getting now, some days before everything was ok =( i could choose all 4 cores to assist in startup, but now my games ar getting a bit laggy and as you can see i am not able to select fast boot =(


my PC specs

I FOUND THE SOLUTION!

http://social.answers.microsoft.com/Forums/en/w7hardware/thread/71519d51-f6cb-47df-b3ff-66c2928d6de4

Maybe this will be useful for somebody =)

 

[Ian]

Thanks for reporting the solution, I'll mark this thread as solved .