Question for Lenovo Owners after Win8 Upgrade

After you upgrade to Win8 successfully, during your first reboot, do you see an option menu with two operating systems you can choose from? For some reason I have a choice between Windows 8 (which is the default) and something called AuditPE.

I have since gone through the startup options menu in control panel and disabled showing multiple boot OS options, but I still have to wonder (googling did not help):

What is AuditPE?

FYI: I'm running a Lenovo IdeaPad U400.