A progress report...We have been able to successfully boot to a Microsoft Dart recovery image on a USB stick. I put Unprovisionex.exe on it and ran it from a command prompt. Running the command quickly returns to the C:\ prompt without any notification that AMT has been reset. I've tried
Unprovisionex.exe -host localhost -full -Ent
Anyone done this before?
Removing the CMOS battery was our only solution. We did not have a password that worked that anyone could remember. We have given the systems to a sister agency and we forgot to unprovision them before letting them go. We had upgraded to SCCM 2012 in the meantime and lost all the password information to boot.