Without more detail it's difficult to say why you experienced BSOD's as their causes are many. As you stated you've solved the problem by employing Virtual Technician. The MVT is just the first step if there is na continuing problem. Technicasl Support are the best people to troubleshoot this sort of things and they are free of charge by phone or online chat 24/7 and linked under Useful Links at the top of this page or here: http://service.mcafee.com/TechSupportHome.aspx?lc=2057&sg=TS
I have Total Protection installed in Windows 8.1 x64 (before that Win 8) and had no issues, so each setup being different that's why they are best to diagnose this.
Thank you for your feedback. Glad that McAfee Virtual Technician resolved your issue.