Need to resume task sequence after unplanned reboot - Error Task Sequence environment not found

Question

The task sequence in SCCM 2012 R2 is being used to deploy a Hyper-V host on Windows Server 2012 R2.
When installing the Hyper-V role, we have a intermittent issue where after the restart, the TRUSTEDINSTALLER installs a kernel driver (vmswitch.sys) and then restarts the system while the SCCM engine is waiting for the SCCM client to initialize.
This breaks the TSE and it throws the error "Task Sequence Environment not found" a few minutes later.
Does anyone know of any way to RESUME the task sequence, or to set the TSEnv.dat back to a clean state that will allow it to resume the TS? I am thinking about configuring an AutoLogon/Logon script that will check try and recover & resume these failures.
ALTERNATELY, does anyone know how to prevent the Trusted Installer from rebooting on Windows Server 2012 R2?
SMSTS.log
_SMSTSReturnToGINA variable set to true TSManager 4/15/2014 4:01:57 PM 2220 (0x08AC)
Waiting for CcmExec service to be fully operational TSManager 4/15/2014 4:01:57 PM 2220 (0x08AC)
Succeeded loading resource DLL 'C:\WINDOWS\CCM\1033\TSRES.DLL' TSManager 4/15/2014
4:01:58 PM 2220 (0x08AC)
Failed to set log directory. Some execution history may be lost.
The system cannot find the file specified. (Error: 80070002; Source: Windows) OSDSetupHook 4/15/2014 4:05:33 PM 1912 (0x0778)
Executing task sequence OSDSetupHook 4/15/2014 4:05:33 PM 1912 (0x0778)
Task Sequence environment not found. OSDSetupHook 4/15/2014 4:05:33 PM 1912 (0x0778)
EventLog
Log Name:      System
Source:        User32
Date:          4/15/2014 4:03:07 PM
Event ID:      1074
Task Category: None
Level:         Information
Keywords:      Classic
User:          SYSTEM
The process C:\WINDOWS\servicing\TrustedInstaller.exe (COMPUTER1) has initiated the restart of computer COMPUTER1on behalf of user NT AUTHORITY\SYSTEM for the following reason: Operating System: Upgrade (Planned)
 Reason Code: 0x80020003
 Shutdown Type: restart
Levi Stevens | Technical Consultant Dell Services

Answer 1

Use sc command to put Windows Module Installer to disabled in your script after Enabling Hyper-v Role. When the system completely restarts, change it to Manual or Automatic.
Note: I have not tested it, it is just my thought, if it does not work or something unexpected happens, it means your issue cannot be fixed this way.
Juke Chou
TechNet Community Support