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Wtf is this?

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Last response: in Windows 7
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rundll32.exe
it goes to the prosesses and has no window just like svhost things
but this litle beast eats 45-60% of my cpu usage, i have p4 2.93ghz
it opens when i start games (no in all) like oblivion,fallout2 and warcraft 3
i have to start game, it wont start and start again but before it goes to fullscreen i end rundll32.exe
only way games wont lag :cry: 
what is it and how to fix it?

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I'll assume that's because you already have a firm understanding of the windows os
I'll assume that not everyone does
I'll guarantee that I'm at least half right
a b $ Windows 7

Excessive rundll32.exe processes can indicate a malware issue... scan your system with Malwarebytes. nVidia's software does legitimately use rundll32, but if you notice more than 1 or 2 instances or if you don't have an nVidia card, I'd suspect malware.
a b $ Windows 7

Then that is why rundll32.exe is running... because of your nVidia drivers. I'd suggest updating to the latest and if that doesn't work, try using various older ones. Just make sure you clean them out completely before you use a different version.
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