“VT” usually means Intel VT-x or the equivalent AMD hardware-virtualization feature. On Windows 10, you enable it in the computer’s UEFI/BIOS firmware. Windows can tell you whether it is enabled, but it does not provide one universal switch because firmware menus differ by manufacturer.
Turn on VT for Windows 10
- Open Task Manager with Ctrl+Shift+Esc.
- Select Performance > CPU and check the Virtualization status.
- If it is Disabled, save your work and restart into UEFI/BIOS using the manufacturer instructions.
- Find Intel Virtualization Technology, VT-x, SVM Mode, AMD-V, or the equivalent setting.
- Enable the setting, save the firmware configuration, and restart.
- Check Task Manager again to confirm that Virtualization now reports Enabled.
VT-x and VT-d are not identical
VT-x is CPU virtualization used for virtual machines. Intel VT-d relates to directed I/O virtualization and may appear as a separate firmware setting. Do not enable every similarly named option unless the software or administrator specifically requires it.
If an emulator still says VT is disabled
Restart fully after the firmware change and verify Task Manager first. Then check whether Hyper-V, Virtual Machine Platform, Memory Integrity, or another hypervisor configuration affects that particular emulator. Follow the application’s current compatibility guidance instead of disabling Windows security features at random.
Older PCs
If the firmware has no virtualization option, check the exact CPU and PC documentation. Some processors lack the feature or some systems lock the setting. Windows 10 is now past standard support, so replacing very old hardware may be more useful than extensive firmware troubleshooting.
Some firmware interfaces place virtualization under CPU Configuration, Advanced, Security, or System Configuration. Use model-specific documentation rather than changing neighboring options based only on similar names.
Virtualization and performance
Enabling VT does not make ordinary Windows applications faster by itself. It simply makes hardware virtualization available to software that uses it. Leave the feature enabled when required, but investigate CPU, memory, storage, or graphics bottlenecks separately when the original problem is general system performance.
Kermit Matthews is a freelance writer based in Philadelphia, Pennsylvania with more than a decade of experience writing technology guides. He has a Bachelor’s and Master’s degree in Computer Science and has spent much of his professional career in IT management.
He specializes in writing content about iPhones, Android devices, Microsoft Office, and many other popular applications and devices.