Solving Android Emulator Execution Error: Enabling Windows Hypervisor Platform

Problem Scenario

• Symptoms: Android Emulator terminates with code 1 immediately after starting.
• Error: Exits after netsimd (Network Simulator Daemon) execution.
• Environment: Windows 11 Pro, Hyper-V enabled.

Solution

# 1. Check current status (Administrator PowerShell)
Get-WindowsOptionalFeature -Online -FeatureName HypervisorPlatform

# 2. Enable Windows Hypervisor Platform
Enable-WindowsOptionalFeature -Online -FeatureName HypervisorPlatform -All

# 3. Reboot
Restart-Computer

Why is this setting required?

Relationship between Hyper-V and Android Emulator

1. When Hyper-V is enabled: Windows operates as a Type-1 hypervisor.
2. Android Emulator 36.x: Supports Hyper-V-based virtualization.
3. The Issue: If Hyper-V is active but Windows Hypervisor Platform is not, the emulator cannot access virtualization APIs.

Role of Windows Hypervisor Platform

• An API that exposes Hyper-V virtualization features to third-party applications.
• Used by Android Emulator, Docker Desktop, VMware, etc., to utilize Hyper-V.
• Without it, the emulator cannot use hardware virtualization and crashes.

When should you apply this setting?

Mandatory Situations

✅ When Hyper-V is already enabled

• Using WSL2, Docker Desktop, etc., on Windows 11 Pro/Enterprise.
• Development environments where Hyper-V cannot be disabled.

✅ When Android Emulator fails with the following errors:

• netsimd related errors.
• "emulator exited with code 1".
• Hyper-V related warning messages.

✅ When using multiple virtualization tools together:

• Android Emulator + Docker Desktop
• Android Emulator + WSL2
• Android Emulator + VMware

Unnecessary Situations

❌ When Hyper-V is disabled

• Using Intel HAXM only.
• Windows 10 Home edition (Hyper-V not supported).

❌ When the emulator is working normally

• No need to change settings.

Key Point: To use the Android Emulator while Hyper-V is on, you must also enable the Windows Hypervisor Platform.