Enable VT-x in your BIOS security settings refer to documentation for your computer

Question

While I was adding a virtual device in my Android Studio  Android Studio is Showing This Error  See This Image

User · Answer

Even i have enable VT-X tech and disabled secure boot. My Android Studio failed to load emulator saying dev/kvm not found.

After doing some research on this. Finally i solved it out.

This issue came after updating HAXM. I found some useful answers. which tell this issue is in HAXM 7.2.0. See this issue on github

Steps to solve:

Uninstall Haxm from SDK manager.
Download previous version of HAXM v7.1.0 from this release page.
Install this HAXM.

Now everything should work fine as before.

User · Answer

It was because of docker which uses hyper-v  You just have to remove hyper-v from windows features

User · Answer

I guess the same error happened to me after I installed Docker  The solution below worked for me   Go to Turn Windows features on and off Uncheck the Hyper-V checkbox    Uninstall Intel Hardware Accelerated Execution Manager via Programs and Features  After the uninstall process  restart your computer  trying to install a new release of HAXM without rebooting didn t work for me   Go to HAXM GitHub page and download the release  I downloaded HAXM v7 6 5  Install HAXM  After all these steps  everything is fine for me

User · Answer

shutdown you pc and open bios settings  and enable Virtual Technology-x option and restart your pc   done

User · Answer

Check  Virtualization  status under performance option in your task manager  If you already have enabled it in your BIOS and still status is  Disabled   then go to bios  disable it and save  amp  exit  Restart or shut down again  Enable it in BIOS again and save  amp  exit  This time you ll see the status changed to  Enabled   It took me 3 attempts  don t know why it took that much time  but finally it worked

User · Answer

HP computer method   Make sure your BIOS is updated before changing the settings  If you have an HP computer  they have an HP Support Assistant app you can configure to automatically install BIOS updates  Then follow the instructions on how to update BIOS   Then you can look up which HP computer for how to change the BIOS in a search engine   For an HP ZBook  follow these steps    Restart your computer with the shift key pressed  before you click restart  until a menu appears  Choose BIOS Setup on the screen  or press F10   Click on Troubleshoot  Using your arrow keys in this menu  go to Advanced Options  Select UEFI Firmware Settings  Select restart  It reboots into a Startup menu Choose BIOS Setup With arrow keys go to Advanced tab  Choose the System Options  Check both the Virtualization Technology  VTx  and the Virtualization Technology for Directed I O  VTd  boxes  Go back to the Main tab and at bottom choose Save and Exit  Computer will restart

User · Answer

In Short -  You must enable VT-x Technology in your BIOS    Here are the detailed steps   1- Restore Optimized Defaults  Not Necessary   Steps to start BIOS  Its better to restore Optimized Defaults before  But following steps are not necessary    Reboot the computer and open the system s BIOS menu  This can usually be done by pressing the delete key  the F1 key or Alt and F4 keys depending on the system  Select Restore Defaults or Restore Optimized Defaults  and then select Save  amp  Exit    2- Enable VT-x Technology in BIOS  Necessary    Power on Reboot the machine and open the BIOS  as per Step 1   Open the Processor submenu The processor settings menu may be hidden in the Chipset  Advanced CPU Configuration or Northbridge  Enable Intel Virtualization Technology  also known as Intel VT-x  or AMD-V depending on the brand of the processor  The virtualization extensions may be labelled Virtualization Extensions  Vanderpool or various other names depending on the OEM and system BIOS  Select Save  amp  Exit     Note  Many of the steps above may vary depending on your motherboard  processor type  chipset and OEM  Refer to your system s accompanying documentation for the correct information on configuring your system   Test    Run cat  proc cpuinfo   grep vmx svm  If the command outputs  the virtualization extensions are now enabled  If there is no output your system may not have the virtualization extensions or the correct BIOS setting enabled   Detailed instructions can be found Here

User · Answer

For Mac users  see this answer      https   stackoverflow com a 47414989 2788608   Essentially  your OS may be blocking Intel from running what it needs to get your AVD going  Go into System Preferences - gt  Security and Privacy and you should see an option there to enable the Intel processes  Restart Android Studio and you should be good to go

User · Answer

Even after enabling Intel Virtualization Technology  Intel VT-x   I got the error message   dev kvm not found   in Android Studio by making Hyper-V feature off in Windows 8 1 issue was fixed   here is how to access Windows Hyper-V feature  Control Panel -  Programs and Features -  Turn Windows features on and off

User · Answer

No restart  no BIOS needed in my case  I have downloaded and installed the latest version of HAXM from the releases  HAXM releases

User · Answer

Intel HAXM is required to run this AVD  VT-x is disabled in BIOS   Enable VT-x in your BIOS security settings  refer to documentation for your computer  this error on android studio  I dont no how to do Bios Security

User · Answer

I had similar issues and below is how i fixed it     Restart your PC  when booting up press f10 key to select or open BIOS Settings  Locate and check   enable Virtual Technology-x option under Device Configuration Settings Save changes  system restart  All should be working fine now

User · Answer

Just to make it simple  The solution is just to enable vt-x or Virtualization Technology in bios  which is under Advanced Tab   and once it s enabled  the error disappears   FYI I had similar issues starting up my Android emulators in Appium studio for my mobile testing  and on top  I had latest bios  which looked so different to the standard one  So attaching screenshot of my computer bios  but the option should be there on any Bios settings   Just need to boot the computer  and push Esc or some function key to see the computer bios  and then find the correct option to enable it under Advanced Tab   most importantly  you may have to scroll down as the option would be down the list  I left my Hyper-V feature as is  which was enabled though

[android] Enable VT-x in your BIOS security settings (refer to documentation for your computer)

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