|What you must do is to uninstall the Windows piece of software that does the verification process - this, as far as I've heard, runs an extra process and consumes some resources.|
Go to Windows Update (in Control Panel) - at the bottom-left panel there're the Installed Updates. Click that link and search for the Windows update KB971033; uninstall that (this does the verification and pops up the "Your Windows is not genuine" screen... if is not genuine. But, like I've said, even if it is, the process still runs in the background consuming resources.
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