Upgrade to 12.1.6 BSODing 2012R2 Servers

After rebooting to complete the upgrade 2 of our VDI hosts will not boot unless SEP is uninstalled in safemode. The others have the update already installed and we cannot reboot them until we figure this out. 

We had upgraded from 12.1.5 to 12.1.6168.6000 Redcued definitions, full install/all modules. 

Here is the BSOD

Log Name:      System

Source:        Microsoft-Windows-WER-SystemErrorReporting

Date:          7/21/2015 10:09:35 PM

Event ID:      1001

Task Category: None

Level:         Error

Keywords:      Classic

User:          N/A

Computer:      HOUVDIHOST01

Description:

The computer has rebooted from a bugcheck.  The bugcheck was: 0x0000009e (0xffffe00104c09900, 0x000000000000003c, 0x000000000000000a, 0x0000000000000000). A dump was saved in: C:\Windows\MEMORY.DMP. Report Id: 072115-45546-01.

Event Xml:

<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">

  <System>

    <Provider Name="Microsoft-Windows-WER-SystemErrorReporting" Guid="{ABCE23E7-DE45-4366-8631-84FA6C525952}" EventSourceName="BugCheck" />

    <EventID Qualifiers="16384">1001</EventID>

    <Version>0</Version>

    <Level>2</Level>

    <Task>0</Task>

    <Opcode>0</Opcode>

    <Keywords>0x80000000000000</Keywords>

    <TimeCreated SystemTime="2015-07-22T03:09:35.000000000Z" />

    <EventRecordID>268697</EventRecordID>

    <Correlation />

    <Execution ProcessID="0" ThreadID="0" />

    <Channel>System</Channel>

    <Computer>HOUVDIHOST01</Computer>

    <Security />

  </System>

  <EventData>

    <Data Name="param1">0x0000009e (0xffffe00104c09900, 0x000000000000003c, 0x000000000000000a, 0x0000000000000000)</Data>

    <Data Name="param2">C:\Windows\MEMORY.DMP</Data>

    <Data Name="param3">072115-45546-01</Data>

  </EventData>

</Event>