Why it matters: With Windows 11, Microsoft wants all consumer PCs to have the same corporate security as corporate devices. If you have just purchased a device or installed a new operating system, it is possible that you have this new feature enabled by default, which causes minor damage to performance. However, you can always turn it off and work with the same level of security you had in Windows 10, but you can also perform better.
Windows 11 isn't perfect anyway, and judges' opinions differ about Microsoft's new operating system. If you've already upgraded or plan to do so, it's worth noting that Windows 11 has advanced security features that come at the expense of performance even on relatively new hardware.
The culprit is a feature called Virtualization-Based Security (VBS), which was first introduced in Windows 10 as an optional security layer for business PCs. What VBS does is that Windows 11 uses hardware virtualization features of modern CPUs to separate a secure area from memory and host security features like Hypervisor-Enforced Code Integrity (HVCI).
This can be done by searching for 'master class' from the taskbar or the settings search box, which takes you to the same location as shown above.
Another way to disable VBS is to use Registry Editor. You can open it by searching for its name from the taskbar or pressing Windows + R and entering regedit in the text box that appears - click OK and you're good to go.
In the window that appears, there is an address bar that you can use to go directly to "HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\DeviceGuard". In the right pane, you will see a DWORD value called "EnableVirtualizationBasedSecurity". Open it and set it to "0". As with the first method, you will need to restart your computer to apply the changes.
Here's how to disable VBS in Windows 11 to increase performance