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#11
I agree with cybercore. Use MSE while you are troubleshooting. Avast runs well with Win 7 also; but stick to MSE until you get your system running smoothly. To backup what cybercore recommended, let Memtest run for at least seven passes. This will probably take sis or seven hours.
I also do not think the antivirus is the problem; but it is mentioned in one of the error codes as a possible cause. You want to eliminate all known possible causes while you are troubleshooting.