Android Studio Emulator error "Emulator: CPU acceleration status: Unable to open HAXM device: ERROR_FILE_NOT_FOUND"

Question

I was able to use Emulator in the android studio without any problems. Since today I am getting the error as: "Emulator: CPU acceleration status: Unable to open HAXM device: ERROR_FILE_NOT_FOUND".

Virtualization is enabled in BIOS, Intel Hardware Accelerated Execution Manager is installed in control panel - programs. Also tried installing intelhaxm-android.exe from android sdk folder.

Please help with the error.

(i7/16gb/windows 10).

Answer 1

I solved that problem following steps

• disabling Hyper-v
• reinstalling HAXM
  - Android studio -> SDK Manager -> SDK Tools -> Intel x86 Emulator Accelerator

Answer 2

Use Hyper-V instead of HAXM

I had the same error. Disabling Hyper-V avoided this error however it also stopped Docker from working properly.

To use both the Android Emulator and Docker on Windows 10 you need to:

• Uninstall the Hardware Accelerated Execution Manager (HAXM)
• Enable Hyper-V (check by running "Get-WindowsOptionalFeature -FeatureName Microsoft-Hyper-V-All -Online" in PowerShell running as Administrator)
• Enable Windows Hypervisor Platform
• Restart your computer
• Enable Virtualization Technology in your computer's BIOS
• Enable Hardware Enforced Data Execution Prevention in the BIOS

Enable Hyper-V and Windows Hypervisor Platform in Control Panel\Programs\Programs and Features -> Turn Windows features on or off

Enable Windows Hypervisor

Microsoft recommends that you use Hyper-V instead of HAXM to accelerate the Android emulator (detailed instructions).