I have a problem with the VMM service causing my server to no longer boot. I have a Windows Server 2012 R2 server running on Hyper-V that has only SCVMM installed on it, I was getting ready to install SCCM on it after I finished migrating the machines to a new hard drive. After I moved the VM's all of them ran fine except the server with VMM on it, I spent plenty of time on Bing and Google trying to find out why my server was stuck at Please Wait and I found nothing, not one thing. I eventually disabled the SCVMM services in msconfig from safe mode and now it boots fine.
It cant be because I moved it because I had a previous VM that was my WSUS, Essentials, RRAS, RDGW and one i installed VMM on it and rebooted the same happened.
This did not happed when I was setting this up at my other deployment for another company