MMC crashes in AD domain and trust

Hi all
A,D server 2012
When setting up a trust, all goes well up untill i say create trust then the mmc stops working and crashes
Any ideas on how to fix this?
also this is what solved it for 2003 dc server
http://social.technet.microsoft.com/Forums/en-US/winserverDS/thread/63ad8afe-6959-40fd-ba99-bb9be4a027d9\
So if i follow that, How do i remove the admin tools from server 2012?