I uninstalled the following updates and haven't got a BSOD ever since:
2805940
2799494
2790655
2778344
2795944
2803676
At least one of them must be the culprit
To uninstall, go to Control Panel -> Uninstall a program -> View installed updates -> Find the updates you want to uninstall, right click and choose Uninstall
Also, remember to disable automatic update so that they won't be automatically installed again. In other word, don't choose "Install updates automatically (recommended)". Choose one of the others, like "Check for updates but let me choose whether to download and install them"
You can also hide the updates that you have uninstalled away so that Windows don't try to install them again. Don't worry, you can always come back to them later by clicking "Restore hidden updates"
EDIT: you may want to try 2778344 first, it seems that's the culprit
I also made a blog post here: http://chinbim.blogspot.ca/2013/02/systemserviceexception-bsod-in-windows-8.html
I did what was recommended here and deleted 2778344 which is a security update and it stopped the problem I was having with service system exception and my computer has been fine ever since. I suggest that any one with this issue might want to try this first it seems to be the best fix and my husband's work is also using this with their tech support to tell any customers having the same issues.