How to Enable or Disable CPU Virtualization in UEFI BIOS on Windows PC
CPU virtualization in your PC’s UEFI BIOS allows your processor to mimic having multiple cores, which helps Windows manage tasks better for improved speed.
Enter your computer’s UEFI BIOS settings during startup by pressing a specific key like F2 or DEL. Navigate to advanced CPU settings and find “Intel (VMX) Virtualization Technology” or “SVM Mode” to enable or disable it. Save changes to exit.
This important processor feature, often called Intel VT-x or AMD-V, lets your computer run multiple operating systems on one machine. It’s essential for programs like virtual machines that need to simulate other computers.
For example, running Android apps on your Windows 11 PC often requires CPU virtualization to be turned on.
- Virtual machines Virtualization-based Security (VBS)
- Windows Sandbox
- Core Isolation Memory Integrity
- Hyper-V
- Windows Hypervisor Platform
- Virtual Machine Platform
- Windows Subsystem for Linux (WSL)
You can check if CPU virtualization is already on by opening Task Manager. Press Ctrl+Shift+Esc on your keyboard to open it.
How to Change CPU Virtualization Settings
Changing your CPU virtualization settings in the UEFI BIOS is done by restarting your PC and pressing a special key before Windows loads. Common keys include F2, F10, F12, or DEL. You need administrator rights to make these changes, and the exact steps might differ a bit depending on your computer’s brand.
- Restart your computer and go into the UEFI BIOS settings. This usually involves pressing a specific key (like F2, F10, F12, or DEL) right after you turn on your PC, before Windows starts loading. Your computer screen might tell you which key to press.
- Look for a tab named Advanced. Once you find it, click on it. Then, find and click on CPU Configuration.
Now, you’ll need to make a change based on whether your computer has an Intel or AMD processor. See the screenshots below for examples.
- If you have an Intel CPU: Find the setting called Intel (VMX) Virtualization Technology. Turn it on or off depending on what you need.
- If you have an AMD CPU: Find the setting called SVM Mode. Turn it on or off depending on what you need.
- Go to the Exit tab. Click on Save Changes & Reset.
- A confirmation box will appear. Click OK to save your changes and restart your computer.
References:
https://support.microsoft.com/en-US/Windows/Experience/enable-virtualization-on-windows
Summary
To enable or disable CPU virtualization in your PC’s UEFI BIOS, restart your computer and enter the BIOS setup. Look for advanced CPU settings and find the option for virtualization, often called “Intel (VMX) Virtualization Technology” or “SVM Mode.” Change this setting to your preference, then save and exit the BIOS.
How to disable virtualization in BIOS UEFI?
Restart your computer and enter the BIOS/UEFI settings. Then look for virtualization technology in system settings or advanced settings. Set the virtualization technology option to disable or off. Save the settings and restart your computer.
Should you disable CPU virtualization?
Disabling virtualization is fine unless using virtual machines, emulators, or specific programs that require it. If you want run "virtual machines", as in whole other OS virtual machines that run in their own chunk of RAM and dedicated CPU cores, then you don't need that. If you do, then you need it turned on.
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About the Author
Richard
Tech Writer, IT Professional
Richard, a writer for Geek Rewind, is a tech enthusiast who loves breaking down complex IT topics into simple, easy-to-understand ideas. With years of hands-on experience in system administration and enterprise IT operations, he’s developed a knack for offering practical tips and solutions. Richard aims to make technology more accessible and actionable. He's deeply committed to the Geek Rewind community, always ready to answer questions and engage in discussions.
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