[artheims]

System had the XP Security 2012 infection. I ran malwarebytes full scan after which the system would not boot but get the stop 7B whenever I tried. Safe mode, last good configuration, or normal mode - all end up with the 7B stop. I did a fixMBR, FixBoot, and chkdsk c: /f with no help. System is only parallel ATA hard drive - no SATA option. I also ran an AVG Rescue CD scan - was clean. I then did an install/repair and it stopped with the "Please wait" screen on the final reboot. Up to that point all appeared normal on the install. I power cycled the laptop and then it indicated an authentication was required before login would be allowed, I selected the "yes" response, and it ran for at least 30 minutes of disk activity without any further screens or options. I did not get any screens allowing me to enter the key for the authentication. Ctl-Alt-Del had no effect. Right or left mouse button had no effect. I then recycled again with the power button and as soon as the initial Windows screen appears, I get the 7B error again.