How to Enable Virtualization (VT-x / AMD-V) on Windows for Emulators

To enable virtualization on Windows, first open Task Manager > Performance > CPU and check the "Virtualization" line. If it says Disabled, restart into your BIOS/UEFI (Settings > System > Recovery > Advanced startup), turn on Intel Virtualization Technology (VT-x) or AMD SVM Mode, then save and reboot. Most Android emulators need it to start at all.

If your emulator shows a message like "VT-x is not available" or "Hardware acceleration is disabled", this is almost always the cause. The steps below cover checking the setting, changing it in firmware, and the Windows features (Hyper-V, Windows Hypervisor Platform, Memory Integrity) that affect emulators after it is on.

What Is CPU Virtualization and Why Do Emulators Need It?

Intel processors expose a feature called VT-x (Intel Virtualization Technology). AMD's equivalent is AMD-V, which motherboard menus usually label SVM Mode. Both let a hypervisor, the layer that runs virtual machines, execute the guest system's code directly on the CPU instead of translating every instruction in software.

An Android emulator on a PC runs Android inside a virtual machine, so it depends on this feature. Google's Android Emulator acceleration documentation lists VT-x or AMD-V as a requirement for VM acceleration and notes that it must be enabled in the BIOS. Without it, most gaming emulators refuse to start, and those that do start are too slow to play on.

Step 1: How Do I Check if Virtualization Is Already On?

Many laptops and prebuilt desktops ship with virtualization enabled, so check before touching the BIOS.

With Task Manager:

1. Press Ctrl + Shift + Esc to open Task Manager.
2. Open the Performance tab.
3. Select CPU in the left panel.
4. Below the graph, find Virtualization: Enabled or Virtualization: Disabled.

If it says Enabled, skip to Step 4: something on the Windows side may still be in the way. If it says Disabled, continue.

With systeminfo:

Microsoft's Hyper-V system requirements page describes this check. Open Command Prompt and run:

systeminfo

Scroll to Hyper-V Requirements. If Virtualization Enabled In Firmware says No, the setting is off in your BIOS/UEFI. If the section says "A hypervisor has been detected", virtualization is already on and a Windows hypervisor is running.

Step 2: Enter Your BIOS or UEFI

The reliable way on Windows 10 and 11 is the one in Microsoft's guide to enabling virtualization on Windows:

1. Go to Settings > System > Recovery.
2. Next to Advanced startup, select Restart now.
3. Choose Troubleshoot > Advanced options > UEFI Firmware Settings > Restart.

The PC restarts straight into the firmware. Microsoft suggests keeping the instructions open on another device, because you will not have Windows while you are in there.

You can also press the firmware key during boot. Common keys are Delete or F2 on most desktop motherboards, F10 or Esc on many HP machines, F2 on Dell and F1/F2 (or the Novo button) on Lenovo. Your manufacturer's support page has the exact key for your model.

Step 3: Where Is the Virtualization Setting in the BIOS?

Menu names vary by motherboard, and some UEFI screens hide CPU options until you switch from the simple view to the advanced one (F7 on many ASUS boards).

Intel Systems

Look for Intel Virtualization Technology, sometimes shown as Intel VT-x or VMX, usually under:

• Advanced > CPU Configuration
• Advanced > CPU Features
• Tweaker / Advanced CPU Settings on some gaming boards

Set it to Enabled. Intel's support article Does my processor support Intel Virtualization Technology? confirms that VT-x is switched on or off in the BIOS, and says to contact the motherboard vendor if the option is missing.

Some boards also show VT-d (Virtualization Technology for Directed I/O), used for passing hardware devices to virtual machines. An Android emulator does not need it.

AMD Systems

Look for SVM Mode (Secure Virtual Machine), usually under:

• Advanced > CPU Configuration
• Advanced > AMD CBS > CPU Common Options
• OC / Tweaker > Advanced CPU Configuration

Set it to Enabled.

Save with F10 (or the key your firmware shows for "Save & Exit") and confirm. The PC reboots with virtualization on. Check Task Manager again.

Step 4: Do I Need to Turn Off Hyper-V?

Usually not anymore. Windows has its own hypervisor, Hyper-V, and other features run on top of it: WSL 2, Windows Sandbox, and the security feature Memory Integrity. When the Windows hypervisor is active, it owns the CPU's virtualization features, and older emulators that expect direct access fail or slow down.

Current emulators solve this differently: they run on top of the Windows hypervisor through the Windows Hypervisor Platform (WHPX), the option Google recommends for its own Android Emulator on Windows. So the fix depends on your emulator:

• If your emulator supports Hyper-V (its documentation or error message will say so), leave Hyper-V alone and make sure Windows Hypervisor Platform is checked in Windows Features.
• If your emulator requires Hyper-V off, uncheck Hyper-V, Virtual Machine Platform and Windows Hypervisor Platform, then restart. Note that WSL 2 and Windows Sandbox stop working while those are off.

To open that list, press Win + R, type optionalfeatures and press Enter. Microsoft's Hyper-V installation guide explains the same dialog and notes that the full Hyper-V role requires Windows 10 or 11 Pro or Enterprise; it is not available on Home editions. Windows Hypervisor Platform and Virtual Machine Platform are separate entries in the same list.

What About Memory Integrity (Core Isolation)?

Memory Integrity (HVCI) is a core isolation security feature that also relies on the Windows hypervisor, and it may already be on in your PC. Emulators built to run alongside Hyper-V generally work with it on. It protects Windows against malicious drivers, so only turn it off if your emulator's documentation specifically asks for it: Windows Security > Device security > Core isolation details > Memory integrity, then restart.

Step 5: Confirm the Emulator Uses Acceleration

Start your emulator. If it opens without a VT-x or hardware acceleration warning and Android boots, you are done.

NovaPlay, for example, needs VT-x or AMD-V enabled and works with Hyper-V active. If the Windows Hypervisor Platform feature is missing, it offers a one-click fix to turn it on, followed by a restart.

Common Problems and Fixes

• The option is greyed out or missing in the BIOS: some laptops hide or lock it. Check the manufacturer's support site for a BIOS update, and, as Intel's article says, contact the vendor if the option is not there.
• Task Manager still says Disabled after saving: the change may not have been saved. Enter the firmware again and confirm the setting stuck, then use Save & Exit, not just Exit.
• Task Manager says Enabled but the emulator still complains: the Windows hypervisor is running and your emulator does not support it. Either enable Windows Hypervisor Platform (if the emulator supports it) or follow the "requires Hyper-V off" route in Step 4.
• Emulator starts but is very slow: virtualization is fine. See the emulator settings guide for more FPS.

Does My CPU Support Virtualization?

Almost every Intel Core and AMD Ryzen processor sold in the last decade has VT-x or AMD-V; on most PCs the question is whether it is switched on, not whether it exists. If you are unsure, look up your exact CPU model on the manufacturer's specification page (Intel lists "Intel Virtualization Technology (VT-x)" for each processor), or run systeminfo as shown in Step 1.

Virtualization: FAQ

Is it safe to leave virtualization enabled? Yes. The setting only lets a hypervisor use those CPU features, and with no virtual machine running it sits idle. Windows security features such as Memory Integrity rely on it, so there is no reason to turn it off after you finish playing.

Does enabling virtualization make regular PC games faster? No. It only matters for software that runs virtual machines: emulators, WSL 2, Windows Sandbox. Turning it on in the BIOS does not change how a regular Windows game runs.

Can you enable virtualization without entering the BIOS? No. VT-x and AMD-V are switched on in the firmware, as Intel's support article says, and Windows features like Hyper-V or Windows Hypervisor Platform can only use them after that. The Advanced startup route in Step 2 is the quickest way to reach the firmware from Windows.

If your PC is on the modest side, the guide to the best Android emulator for a low-end PC compares which emulators officially run on 4 GB of RAM. If you want to try NovaPlay once virtualization is on, you can download it here.