Sophos Enterprise Console upgrade fails - The MSI terminated unexpectedly.

Hi folks,

Today I attempted to upgrade from version 5.4.1 to 5.5.0 with no luck.  The first error I received was what was stated in the Subject line with a link to look here:  https://community.sophos.com/kb/en-us/121420

However that patch is not even installed on my Server.  I rebooted the server and tried again.  This time it told me to uninstall the Management Server (which I did).  However it will still not install.  These are some of the errors that I am seeing in the bootstrap installation log.

4/11/2017 2:39:53 PM, WARNING : Could not copy SmAgentAPI.dll from C:\sec_550\ServerInstaller\pre-reqs\SmAgent\SmAgentAPI.dll to C:\Program Files (x86)\Business Objects\BusinessObjects Enterprise 11\win32_x86\plugins\auth\secLDAP\SmAgentAPI.dll, copyFile return 5 - Access is denied.

Also towards the end of the log, see the errors below.

4/11/2017 2:39:53 PM, INFO : Initializing the service: Sophos Message Router
4/11/2017 2:39:53 PM, INFO : Stopping service Sophos Message Router ...
4/11/2017 2:39:54 PM, INFO : Waiting for service to stop...
4/11/2017 2:39:54 PM, INFO : Service stopped
4/11/2017 2:39:59 PM, INFO : Copied C:\ProgramData\Sophos\Remote Management System\3\Router\table_router.txt to: C:\Users\usernamehere\AppData\Local\Temp\table_router.txt
4/11/2017 2:39:59 PM, INFO : Starting service Sophos Message Router
4/11/2017 2:40:00 PM, INFO : Service started
4/11/2017 2:40:00 PM, INFO : Verifying files in folder
4/11/2017 2:40:04 PM, INFO : Target folder verification completed successfully
4/11/2017 2:40:04 PM, INFO : About to install Server64.msi
4/11/2017 2:45:08 PM, INFO : Processing INSTALLMESSAGE_ERROR or INSTALLMESSAGE_FATALEXIT message from MSI
4/11/2017 2:45:08 PM, INFO : Deactivate state: Installing
4/11/2017 2:45:08 PM, INFO : Activate state: Failing
4/11/2017 2:57:37 PM, INFO : Installation of Server64.msi failed with error code: 1603
4/11/2017 2:57:37 PM, INFO : Ended installing Server64.msi
4/11/2017 2:57:39 PM, INFO : Installation failed with error code: 1603
4/11/2017 2:57:39 PM, INFO : Deactivate state: Failing
4/11/2017 2:57:39 PM, INFO : Activate state: Failed
4/11/2017 2:57:39 PM, INFO : Entered Installation failed page.
4/11/2017 2:58:18 PM, INFO : Opening logs folder: C:\ProgramData\Sophos\Management Installer

At this point in time, the Enterprise console etc is completely hosed.  Thankfully this server is a virtual one and I plan on restoring from last night's VEEM backup to get the server and Enterprise Console into working condition.

Any thoughts on this?  Do I need to call support for assitance on this one?  Thanks!