The System Administrator Has Set Policies to Prevent This Installation – Windows 2012

Error:

Error: “The System Administrator Has Set Policies to Prevent This Installation”, when trying to install a software.” When trying to install an MSI on a server.

Solution

Browse the registry to HKLM\Software\Policies\Microsoft\Windows\Installer

 Create: DisableMSI       Type: REG_DWORD  value = 0   (0 should allow you to install it was originally 1)

Install your MSI.