VT Not Supported when Installing HAXM

Solution 1:

So the only solution I've found to make it work is to completely disable Hyper-V in Control Panel -> Programs and Features -> Turn Features On or Off.

If anyone knows how to enable VT-x without disabling Hyper-V please answer this question...

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Solution 2:

To turn off Hyper-V run this from cmd: bcdedit /set hypervisorlaunchtype off, and then reboot.

To turn Hyper-V back on, run this: bcdedit /set hypervisorlaunchtype auto

Solution 3:

I had the same problem and I just found, that in Avast 9 there is an option to prevent it from using the virtualization feature. It has some impact on the Avast Sandbox, but after I disabled it, I could finally install HAXM.

Solution 4:

First of all you have to disable Hyper-V technology. You can do this by disabling this technology in Control Panel, Programs, Windows Functions
If you use Avast, disable it for the installation time. You can restore all Avast services after installation process.

I've recently had some problems with installing HAXM on my Machine (I use Dell Inspiron 5521 with Core i7 processor) and nothing helped. Finally, I downloaded this pack:

http://software.intel.com/en-us/blogs/2013/04/25/workaround-patch-for-haxm-installation-error-failed-to-configure-driver-unknown

copied it to my HAXM folder and then started .cmd file as an Administrator. After restarting computer HAXM was installed on my computer. You can check it by typing

sc query intelhaxm

in your cmd.

Solution 5:

Hyper-V enables a hypervisor under Windows, so the OS you're running is already virtualized. VT-x is a hardware feature, so nested VT-x is not possible (without adding hardware + software support, which seems unlikely), so you will not be able to enable Hyper-V and another VT-x solution (HAXM, VirtualBox, etc) at the same time.