Did this start happening after the install of the latest nvdia drivers
Lets do this since we don't have any dump files let create some by getting your system to bsod on purpose. First make sure the computer will save the report by following this guide: Dump Files - Configure Windows to Create on BSOD
Please reboot if any changes were made.
Then were going to enable driver
verifier via this guide: Driver Verifier - Enable and Disable
Please allow the computer to blue screen at least twice. Then disable the verifier by entering safe mode and typing verifier in the search box and deleting the settings.
Then follow the bsod posting guide again and attach it to your next post: http://www.sevenforums.com/crashes-d...tructions.html
It is more than likely a video card problem but we want to be sure and to have the info for other drivers that may be causing problems as well.