I came across a problem the other day after I installed bootvis from Microsoft. I got a bunch of errors and could not get rid of it <img border="0" title="" alt="[Eek!]" src="eek.gif" /> . Well, here is how:

[HKEY_LOCAL_MACHINE\System\CurrentControlSet\Contro l\Session Manager\Memory Manager\PrefetchParameters]
"EnablePrefetcher"=dword:00000000

0 = disabled which is how it is now
1 = Boot prefetch
2 = App prefetch
3 = both 1 and 2

I hope this saves someone a headache...I wish someone told me this...oh well, now I know.