For those who want to block unwanted SharePoint installation within their Corporate Network, create a new software restriction policy using the following registry

HKLM\Software\Policies\Microsoft\Shared Tools\Web Server Extensions\14.0\ SharePoint\

image

 

Another solution is to deploy, using GPO, the registry key with the following information:

Path: HKLM\Software\Policies\Microsoft\Shared Tools\Web Server Extensions\14.0\ SharePoint\

Key type:DWORD

Key name: DisableInstall

Value: 00000001 (to block installation)

 

Don’t forget to document this security settings, and to manage correctly your server to be able to deploy SharePoint on specified servers  Smile