WIN 7 PC Now Blue Screening After I Installed NIS 2012

My WIN 7 PC had been running with NIS 2011 for a year with no problems.  Before the subscription had expired I downloaded and installed the free upgrade to NIS 2012.  The system began crashing with:  STOP CODE 0x0000007F (0x00000008,0x807C5750,0x00000000,0x00000000).

 

I then uninstalled NIS 2012 (and had no NIS installed on the PC) and everything ran fine.  I then installed NIS 2012 from my software disk that I had recently purchased and the system began crashing once again.  Last week I installed NIS 2012 from a different software disk on three other computers in my house and they are all running fine.  None of these PC's have crashed with a blue screen.

 

Who can give me some help as to what my problem is?