Can't install Project 2013 - Group Policy software restrictions

Local software restrictions were preventing me from installing Project 2013.

Errors were logged in %AppData%\Local\Temp.

"Error checking already running ose version. Error code 0x00000000"
"Unable to select Source Engine process to start"

Firstly System Restore was disabled by policy:
HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows NT\SystemRestore
DisableConfig
DisableSR

Then the Office 64 Source Engine was not started and local attempts to start it (OSE.EXE failed).

Access to C:\Users\ANDREW~1\AppData\Local\Temp\ose00004.exe has been restricted by your Administrator by location with policy rule {34ae1087-c2cc-409f-a442-e48e70e62efb} placed on path C:\Users\AndrewPotts\AppData\Local\*\*.exe.