GT 640m has disappeared

Nightwish

Distinguished
Mar 2, 2012
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i have a acer aspire v3-571g, which comes with a nvidia gt 640m card. all of a sudden i cant update it as it says its not detected. its seems that it is now using a intel hd graphics card now. is it just a case of un-installing the intel card or is there a bigger problem here?
 

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