Bad memory dimms or virus?

sinned47

Distinguished
Nov 14, 2011
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18,510
hello tomshardware community,
i have used your site for a while now and this will be my first time posting. so i built a sandy bridge computer 5 months ago and it worked out great. however today (more specifically this night), i am getting a werfault error when i try to run my calculator (calc.exe). bare with me because this is off the top of my head. the error says something like cannot find reference in *memory address* then gives me another error saying that calc.exe couldnt start correctly.
my first initial thought is that i should run memtest and what not. but i wanted to try to do a system restore first to see if it clears up anything. however, i am prevented from restoring my computer. i would run it and select a date and confirm the restart but then it comes back with system restore has failed/errored. so i am thinking it could be a virus that deleted something important and prevented me from restoring my computer.
can anyone offer any advice or insight? i am currently running memtest and if everything is okay, ill try restoring my computer in safe mode.

not sure if these things indicate something else, but i have also encountered "video driver stopped responding and has recovered". in addition, my task bar has been changing from windows 7 theme to a windows 98 type bar and back.

thanks for your views and replies
 


If it gives the same error over and over again it is not a memory problem