Sorry that I missed that in your first post.
Try these free, bootable malware tests: Free Online AntiMalware Resources
You can zip up the contents of C:\Windows\Minidump and upload it with your next post (using Hirens).
Did you run Memtest for at least 3 passes?
Did you run the Seagate long/extended test? (not the short/quick one)
Can you get into Startup Repair? If so, try it 3 times, rebooting between each attempt.