I don't know. When I enter task manager the top of the column over CPU says 100% even when the computer is idle. I have been told that number should be less when the computer is not doing anything.Which process is using the CPU?
Open task manager, click on the "show processes from all users" button and then click on the cpu usage column so it shows highest usage at top and then tell us what is using the cpu.
Where that one says 6% my says 100%