When installing or upgrading GSS a message box displayes with 'terminated unexpectedly'
From windows Event Views the error is listed as: Policy error on the machine:
There are three methods to resolve this issue
1) From a regedit:
Go to key HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Installer
Change the DisableUserInstalls value to 0
2) From gpedit
From the Start menu, click Run…
In the Run… command dialog, enter gpedit.msc
In the Group Policy Editor, select Computer Configuration > Administrative Templates > Windows Components > Windows Installer
In the Extended Properties pane, double-click Prohibit User Installs Click Disabled
3) take machine off domain method:
take machine off domain and put into a workgroup and run the following command twice: gpudate /force ( this will remove all Group Policies from the machine )
install GSS
put machine back on the domain ( this will reenable all Group Policies )