I run Win 8 Pro, with VS 2012 Ultimate and I installed Windows Phone 8 SDK. The Win 8 is installed directly on an SSD drive. System details: CPU: Intel i7-3930K CPU @ 3.20GHz RAM: 32GB Hyper-V installed and working fine (running some other instances, Dynamics, SharePoint) no problems at all.
This tool: https://slatstatuscheck.codeplex.com/ reports: You have a SLAT capable machine.
Using Intel Processor Identification Utility I get the following info: 
However when i create a new windows phone 8 project, and start that application, the emulator show's "The Windows Phone OS is starting". It stays that way for few minutes after it closes. In Hyper-V the instance is running but the emulator is not working. I tried many cases, repair, uninstall, install, remove switches, recreate them ... nothing! The same result each time.
What might be the problem?
Is my machine compatible running virtualization? I guess yes because it works fine running some other virtual instances ...