Develop Reference

Unable to run Android Studio Emulator - "(VT-x) is not turned one" when installing HAXm

I've seen many posts similar to my problem, and even though I tried to do the same steps, it still didn't work.
Intel Core i7 - 2670QM CPU # 2.20GHz Windows 10
I need to create an emulator for Android Studio in order to test my apps, but it doesnt work, it says that I need Intel HAXM.
Then I try to install and says (VT-x) is not enable (like in the picture below)
Error while installing HAXM
I've already tried:
(1) Check the BIOS (there is no option in my BIOS about VT-x virtualization, but I've check with the application "coreinfo" that says its actually working on my system.
(2) Disable Hyper-V on Windows (also, I couldn't find this option on "Windows Features" on Windows 10, but I've disabled everything that says Hyper-V in Windows "Services"
(3) I've checked about AVAST.
(4) I've updated my Windows
Thank you guys!!
I just don't get the fact that Windows doesnt show the Hyper-V option, and the BIOS doesnt give VT-x option also, but the Haxm_check says:
"VT support -- yes
NX support -- yes"

You don't mention what OS you're using. Have you tried downloading separate installer rather than install thru Android studio
https://software.intel.com/en-us/android/articles/intel-hardware-accelerated-execution-manager
also run the bcedit commands to make sure the CPU is enabled, not just capable
bcdedit /set hypervisorlaunchtype off
bcdedit /set nx AlwaysOn

your list shows hypervisor enabled. You should go into control panel>Programs>turn WINDOWS features on/off on the left side. Then whether it's on or off you should still see the HyperV checkbox. Make sure nothing is checked. If it's really off, you should be able to search for HyperV Manager and not find it.

HAXM Virtualisation Install

I'm a new Android developer and learner, and I am actually facing some strange issue. (config : Intel Core i7 3630QM # 2.40GHz , 6go ram , windows 8.1)
Just like many, I encountered the HAXM issue when I tried the emulator on the AVD manager.
What I have done :
1. Download the package for intel accelerated HAXM virtualisation via my SDK manager
Figure out the sdk location on my pc, and click on install (manually on the app)
C:\Users\didier\AppData\Local\Android\sdk\extras\intel\Hardware_Accelerated_Execution_Manager)
2.1 I get this error,
My PC meets the requirements but...
This means that my HAXM virtulisation may not be enabled on my pc.
2.2 I checked that on my BIOS, enabled it , saved and exit.
3. I retry the install from the exe file in my sdk location.
- I get the same error message.
So I tried install from intel website : Software from intel Website link , ==> I get the same
error message
I download Speccy, a program that tells you what is on your PC, I found that on BIOS, the Virtualisation option that I enabled , was actually DISABLED.
So I rebooted, and check that, it was ENABLED.
So now, I don't know what to do, I have found some other solution to emulate, but it's quite slow, it uses ARM technology.

Here is a possible solution to your problem, what I've found from your information given is that:
Your processor supports HAXM, see this spec sheet.
The hardware requirements are:
Intel® processor with support for Intel® VT-x, Intel® EM64T (Intel® 64), and Execute Disable (XD) Bit functionality
At least 1 GB of available RAM
Referring to that list of possible solutions, you should try:
Double check if Execute Disable Bit, VT-x, VT-d are turned on in BIOS
Disable Hyper-V in Windows 8.1
There have been issues with Hyper-V tech conflicting with HAXM, refer to this SO question.
Create a separate boot entry that disables hyper-V completely, or just disable all of it by:
Press Start.
Type CMD.
Right-Click, select Run As Administrator (must do this even if on Admin account)
type this in bcdedit /set hypervisorlaunchtype off
Reboot. Hyper-V should be off now.

I had the same problem with a similar processor, core i3, in my VAIO laptop. VT was also enabled on the BIOS and the problem was fixed when I uninstalled the avast anti-virus(no disabling the protection) and so I could finish the HAMX installation. After that, I installed the Avast software again.
I hope this issue can help more people.

I had terrible trouble getting an Android Virtual Device to work on Android Studio. I thought I had done everything right but then I checked the Hewlett Packhard BIOS again and realised that the word Enable beside Virtualisation really meant Enable and not Enabled, which is VERY confusing. Switch to Disable (which seems to mean Enabled) and all should be good. Talk about double negatives!

VT-x not working, even tho it's enabled in bios and my CPU supports it

I tried to make my android emulator work faster and as the title says, I can't get to install HAXM driver on my laptop. I've looked everywhere and did everything people suggested on other pages. Intel Virtualization Technology in bios is enabled. Updated Eclipse tools etc. Downloaded driver directly, instead of throguh Eclipse manager. I even tried to disable Hyper-V in Windows functions but it's not there.
I still get the following error when trying to install the driver:
(Can't post images so I will just rewrite it)
"This computer meets the requirements for HAXM, but Intel Virtualization Technology (VT-x) is not turned on. HAXM can be installed, but will not work until VT-x is enabled."
As I said before, it is ENABLED in bios so I have no idea what's the problem.
I would appreciate any help. Thanks.

Some antivirus prevent Haxm installation. In my case -- Avast : settings tab -> troubleshooting -> uncheck "enable hardware-assisted virtualization" Solved the problem
A step-by-step tutorial can be found here

Although this is an old question, but I've still encounter it recently.
This is what worked for me on my i7-3770 3.40GHz, Z77 extreme motherboard running Windows 10.
In Windows, disable Hyper-V:
Open up a PowerShell or CMD session as Administrator.
Type the following command:
dism.exe /Online /Disable-Feature:Microsoft-Hyper-V-All
Windows will ask you to restart.
In the bios:
Disable >>> Intel Virtualization Technology, vt-d
Save the bios settings and allow it to restart and boot into Windows.
Shutdown the computer (I've tried just restarting and it didn't work)
Power up the computer, go into the bios and re-enable the above disabled settings.
Save, restart.
Download the Intel Utility to check.
You should now see it been supported:
If it still doesn't work, try re-enabling Hyper-V first then following the steps above.

Hope my answer helps someone who ends up on this page for the question
I had just updated my BIOS and found that emulator on Android Studio was not starting mentioning "VT-x not enabled". When I checked task manager it showed Virtualization is Disabled
On entering BIOS found that Virtualization showed enabled. I exited and googled up in vain.
How I got rid of it:
I entered BIOS setup once again, this time I disabled it and re enabled. Saved and exited.
When I again checked in Task Manager, "Virtualization showed as enabled"
I made sure emulator is also running as I am typing this answer

had the same problem with my elitebook-i7 while running windows 10 pro. just like #Sajkor non of the method worked that's why am advising you try this method out:
Search program and features and open
open "turn windows features on or off"
under hyper-v, expand hyper-v platform an disable Hyper-v hypervisor
Also disable virtual machine platform
save and restart the pc
hope it helps, see the image if you are lost
https://i.stack.imgur.com/ICbEF.png

do you have any other software installed on your PC, that may prevent HAXM to use VT-x ?
Maybe you've got some other SDKs/emulators installed that would come with a virtualization service ?
Also, what's your laptop ? Sometime BIOS may be buggy and to really enable VT-x, you may need to disable it, shutdown and boot your PC again, enable VT-x, shutdown and boot again.

Android SDK's Intel HAXM disabled after installing Hyper V

I'm developing a suite of mobile apps - specifically Windows Store/Mobile 8 and Android.
Having installed VS2012 and then Monodroid, I was then able to start x86 Android images in the emulator and take advantage of the Intel HAXM acceleration (emulator output confirms HAXM working) to make the VM buttery-smooth.
I then installed the Windows Phone 8 SDK - which enables the Hyper V role - and now the emulator says it can't find HAXM. I then uninstalled and tried to reinstall HAXM, but now it won't - saying that my processor doesn't support it.
The VT-x extensions are still enabled in the BIOS - so I'm thinking that Hyper-V has blocked the Intel HAXM from working.
Of course it's not a killer - but a non-accelerated Android image is considerably slower than one with HAXM enabled - anybody else encountered this problem? Googling isn't bringing up anything obvious...
Update (30th Nov 2012)
Per #alexw's suggestion I tried stopping & disabling Hyper-V; with a restart. It still doesn't work.
I realise the next step is probably to the Windows Phone SDK (and remove Hyper-V) and then try again - to confirm that it really is the presence of Hyper-V. At the moment this is less than convenient - but I'll try and do it soon and update.

The best thing you can do to get HAXM detect VT again, is turning the whole Hyper-V "Feature" off. Open "Control Panel -> "Programs" -> "Turn Windows features on or off" (under "Programs and Features") and locate "Hyper-V", uncheck, reboot.
Looks like Hyper-V and HAXM are mutually exclusive, which is kind of a nuisance, because you even need to reboot twice to enable or disable either feature.

I was in your same case that needed to support Hyper-V and Intel HAXM. Disabling and enabling the feature and then restarting was overkill so I found an alternative solution.
You can create 2 boot entries, one for Windows with the regular configuration of Hyper-V enabled and another one with Hyper-V disabled. I logged in with the second one (Hyper-V disabled) and I was able to install Intel HAXM.
To accomplish this you need:
Open a command prompt as Administrator
Enter the command: bcdedit /copy {current} /d "Windows 8 - No Hyper-V"
This will output an id with the format {GUID} that you need to copy it to use it in the next command.
Enter the command: bcdedit /set { copied GUID of step 3 } hypervisorlaunchtype off
More details in this post.

I had a similar problem installing HAXM on Windows 8. I did the following with no effect:
Disabled hypervisor using the instructions here (http://blogs.msdn.com/b/virtual_pc_guy/archive/2008/04/14/creating-a-no-hypervisor-boot-entry.aspx)
Double checked that processor supported VT-x and was enabled in BIOS (BIOS said "supported", but there was no option to turn it on
Verified that all Hyper-V services in control panel were stopped (and never automatically started)
Performed a complete shutdown and a cold boot up.
However, I tried installing VirtualBox after the above actions (VirtualBox installed fine) and created a new VM. Running the VM caused my machine to blue screen, but after the reboot HAXM installed fine. Perhaps running VirtualBox flips some sort of flag at the OS level to allow HAXM to install.
I was also running AVAST at that time, and according this (Running the new Intel emulator for Android), that may cause a problem. However, I didn't have to disable AVAST to get HAXM installed.

You could try stopping the Hyper-V service when not needed and re-enabling it when you want to work on a WP8 project. It's a pain but the performance improvement offered by HAXM is immense.
Open services.msc, find the hvboot service (Hyper-V) and stop it. If this doesn't help you may need to disable the service and restart your pc.

I had the same problem. After a long search I found the answer. In my case, I had installed Avast Antivirus, first uninstall avast, reboot your PC, install Haxm, reboot. you can install again antivirus.

Running the new Intel emulator for Android

Lately Google and Intel have published a new way to run the emulator, which should work much better than the previous version (which has emulated ARM CPU). Here are some links about it: this and this.
However, after installing the new components and creating a new emulator configuration as instructed, I get an error and I also can't see any improvements. I've tried both API 10 and API 15, and with GPU enabled and disabled. None of those configurations helped. I've also tried it on two different computers and didn't get any boost (and got the same errors).
It seems that on the posts I've read about it, nobody had any problems with it and all report a much faster emulator.
The error it shows is:
emulator: Failed to open the HAX device!
HAX is not working and emulator runs in emulation mode
emulator: Open HAX device failed
Why is it happening, and is there a way to fix it? Is there anyone else who gets those errors or vice versa?
By the way, I have an Intel CPU, if that could be a problem.
EDIT:
here's what I see in the BIOS, so it should be available... :

I had the same issue, solved it by Installing the Intel Hardware Accelerated Execution Manager. Download it with the SDK Manager, it's in Extras. After this, go to the folder
[Android SDK Root]\extras\intel\Hardware_Accelerated_Execution_Manager
then run IntelHaxm.exe and install.
Here the link of the Intel Hardware Accelerated
IntelHaxm.exe for
Microsoft Windows,Mac OS* X, and Linux
Ubuntu
You'll get the following message if you don't have virtualization enabled in your BIOS:

Small Note for Windows 8 user, Intel HAX will not work if Hyper-V feature is enable. Hyper-V (like most of the virtualization tech) will exclusively lock the VT extension witch will prevent HAX to work properly. A workaround if you “need” Hyper-V too might be to stop manually the Hyper-V services when you need HAX (haven’t tested it yet through).

If all else fails. Simply try to download the Intel HAXM zip manually, extract and install.
check here
Remember this only works for an Intel cpu that supports Intel Virtualization Technology. And you MUST enable virtulization in your bios.
It's a fairly decent and very noticeable improvement to the android emulator if you ask me.

Not every processor is supporting the virtualization!
To find out your chipset abilities go to http://ark.intel.com/,
insert the name of your processor in the search line and check out the resolve.
Advanced Technologies: ...
Intel® Virtualization Technology (VT-x) = ???
If you see "No", you can forget HAXM!

Here are the steps to get the Hardware Accelerated Execution (HAX) which is really quite a lot:
1-check your processor Intel website to see if it supports Intel VT-x or not:
http://ark.intel.com/Products/VirtualizationTechnology
all Intel Core i processors and some other selected processors support Intel VT-x
2- check your bios to enable Intel VT-x , usually called hardware virtualization or Intel virtualization in bios
3- check if you are using a software conflicting with HAXM, popular software conflicting with haxm include but not limited to:
Hyper-V
Windows phone SDK 8
Avast antivirus 8
4-install Intel management engine interface (MEI), this driver is usually not installed and is not part of retailer Windows DVD, even Windows 8.
Check this post about how to install:
http://communities.intel.com/community/vproexpert/blog/2011/12/19/mei-driver-now-available-via-microsoft-windows-update
This driver is required and is not optional to activate Hardware Acceleration
you can also install it from windows update
5-use android SDK manager to download Extras -> Intel x86 Hardware Accelerated Execution Manager.
6-Run installer of HAXM from:
[Android SDK Root]\extras\intel\Hardware_Accelerated_Execution_Manager\IntelHaxm.exe
if you passed the previous steps the installer will work just fine ,otherwise it will fail
7-start AVD and see the difference in performance, Animations are faster
System UI and launchers crashes in 4.0.3 but are just fine for 4.2.2
see installation guide by intel:

Using SDK Manager to download Intel HAX did not work.
Downloading and installing it from the Intel website did work.
http://software.intel.com/en-us/articles/intel-hardware-accelerated-execution-manager/
Top Tip: making the change in my BIOS to enable virtualization and then using "restart" did not enable virtualization. Doing a cold boot (i.e. shutdown and restart) suddenly made it appear.
The first step (on Windows) is to make sure that the Micrsoft Hardware-Assisted Virtualization Tool reports that "this computer is configured with hardware-assisted virtualization".
http://www.microsoft.com/en-us/download/details.aspx?id=592

You might need to turn on virtualization in your BIOS, most manufacturers disable it by default. Intel HAX requires CPU virtualization to be enabled.

The same began to happen to me about one week ago, without apparent reason (99% sure that I didn't upgrade anything); after being able to run the emulator for some time it just stopped working without an apparent reason.
I tried to install the Intel thingie, but the installer reported that my machine doesn't support Intel VM, despite the fact that it has an Intel i3 processor and that virtualization is enabled (perhaps XP is too old an OS for that, although MS VM, Oracle's Virtual Box and VMWare have been installed an working in this machine with the same OS).
I just edited the VD to emulate an Arm processor, and everything is working again.
Perhaps not the optimal solution, but it works!

For Windows, there are some answers explained how it works. But I'm a Mac User, I don't know how to install HAX driver for Mac as they did for Windows. Finally I found the below link and it did fix my problem. You should download HAXM of Mac
and then install it.
https://software.intel.com/en-us/articles/intel-hardware-accelerated-execution-manager-end-user-license-agreement-macosx/

Complete step-by-step instructions for running the accelerated emulator can be found on the official Android developers website:
Caution: As of SDK Tools Revision 17, the virtual machine acceleration
feature for the emulator is experimental; be alert for
incompatibilities and errors when using this feature.

You have to download the Intel® Hardware Accelerated Execution Manager.
Then you will get this message:
Starting emulator for AVD 'test'
emulator: device fd:740
HAX is working and emulator runs in fast virt mode

For Mac users who want to check whether your processor supports virtualisation, use the maccpuid software and look for VMX. If it is checked then you're good to go.
Download it here

Here there are two issues we have to concentrate on:
HAX device failed to open,
For this problem, you have to run the HAX device setup file from the HAX addon folder. Follow Speed Up Android Emulator to know clearly how.
If you created the AVD through AVD manager then you can change the RAM size in AVD Manager and device edit option.
If you created the AVD through command line, then you should start the AVD from command line will work,
emulator -memory 512 -avd gtv_avd

If everything else fails, it's good to try my option and download a HAXM installer.
It needs to be copied to HAXM installation folder and then started from command line (start CMD as an Administrator). After restarting computer HAXM will be installed. It perfectly worked for me as I was having problems with installing it on my laptop.
After all simply type sc query intelhaxm in your cmd in order to check whether HAXM is installed properly.

If you are running an Intel processor make sure the HAXM (Intel® Hardware Accelerated Execution Manager) installer is installed via SDK Manager by checking this option in SDK Manager. And then run the HAXM installer ext via the path below.
your_sdk_folder\extras\intel\Hardware_Accelerated_Execution_Manager\intelhaxm.exe
Also check the RAM size allocated while doing HAX installation so it fits the RAM size of your emulator.
This video shows all the required steps which may help you to solve the problem.
This video will also help you if you face a problem after installing HAXM.

Download HAXM from the Intel site.
Install it.
And then run the AVD from AndroidStudio, menu -> Tools -> AVD. Choose x86.
It works!