If I reboot to Windows directly from Windows (bootcamp options), I cannot launch a vm in Hyper-V

Hello guys,


If I reboot to Windows directly from Windows (bootcamp options) or press "option" key and select Windows after power on iMac, I cannot launch a vm in Hyper-V anymore (the Windows Phone 8 emulator to be precise). It says hardware virtualization is not enabled in BIOS.

When I boot Windows from OS X > Startup Disk > Boot Windows or boot OS X and reboot iMac and boot Windows after press "option" key and select Windows, I can launch a virtual machine in hyper-V, so that's cool.

How it fix? Any ideas?


iMac (27-inch, Late 2013), Windows 8.1, OS X 10.9-10.10

Boot Camp Support Software 5.1.5621

iMac (27-inch, Late 2013), OS X Yosemite (10.10), and Windows 8.1

Posted on Oct 18, 2014 2:16 AM

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If I reboot to Windows directly from Windows (bootcamp options), I cannot launch a vm in Hyper-V

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