I just followed the below steps, its works for me for below issue in Windows 8.1 1, Open “Window Security” 2, Open “App & Browser control” 3, Click “Exploit protection settings” at the bottom 4, Switch to “Program settings” tab 5, Locate “C:\WINDOWS\System32\vmcompute.exe” in the list and expand it 6, Click “Edit” 7, Scroll down to “Code flow guard (CFG)” and uncheck “Override system settings” 8, Start vmcompute from powershell “net start vmcompute”

Welcome back to the CORE Team blog. The General Availability date for Windows 8 and Windows Server 2012 has come and gone, and we here on the CORE Team expect more of you will be diving in and taking part in all of the excitement around these new products. To make sure you have a great experience, we endeavor, whenever possible, to make you aware of situations that may temporarily ‘inconvenience’ you. That is the purpose of this blog. We have recently encountered several instances where a specific group policy configuration can affect the proper functioning of a Windows Server 2012 Hyper-V virtualization solution. This is due primarily to changes…