I have experienced this as well. This occurred on a Dell Latitude E5410 in my case but behaved in the same way. I did an emergency boot from the EETech disk and it was cleared up. The user said that the loop presented itself again after a few days and had staff re-image machine and leave EEPC off of the machine. I am having the user bring it back in for further testing. I just thought it would be a hardware problem on the machine. Have you opened a case with McAfee about this? Please let us know if you find the cause of this.
Enable the "Use compatible MBR" in EEPC product settings policy at ePO policy catalog & enforce the policy to laptop which has issue.
This might help...............
I had thought about turning that on, but so far it only seems to be Windows 7 and the Dell Latitude e5510, we have 5520s and 5420s with Windows 7 Pro loaded with no issues. We also have e5510s with XP and no issues. I also don't see it happen all the times with the e5510s with Windows 7, it'll boot fine for between 5 and 6 times without issues, and then the 7th time will just get stuck in a loop, and then i can power it down and it boots up with no issues, once past preboot the OS has no issues at all and runs smooth.