I have recently been taking Windows 8 Release Preview for a test-drive in a VHD on my year-old Compaq laptop (Windows 7 Home Premium, 64bit). It is very smooth, but for some reason when I first logon the CPU idles at 70%, even when I am doing nothing and as a consequence the fan is permanently on. After around half an hour of use, the fan spins down and the CPU idles at around 1-6%, less than Windows 7 at around 5-13%. Is there any reason as to why this is occurring, and can I fix it? I would really like to upgrade to Windows 8 but will not if I cannot be sure that this problem will not plague me when I upgrade - having the fan permanently on is really distracting whilst I am working.
Any help would be gladly appreciated in this matter.
Windows 8 has intermitten performance(4 posts)
It seems to me the drivers would be taken care of in Win7, not the VHD...but I am not certain... Have you viewed the Performance Monitor in the Win8 side when the CPU undergoing this load? From the Metro screen, right click on a blank area and hit All Apps, then find the Performance Monitor app...it is also in the C drive (of the VHD?) in WIndows/System32 folder
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