Step 1: Visit the official page of Rufus and download version 3.18 or a later version. Here is how to use Rufus to prepare Windows 11 bootable USB for unsupported PC hardware. The Rufus tool makes necessary changes to installation files while preparing the bootable USB so that the Windows 11 system requirement check will be bypassed automatically. Rufus, the hugely popular bootable USB preparation tool, now allows you to prepare Windows 11 bootable USB for unsupported computers. But now, you can easily install Windows 11 on an unsupported PC from a bootable USB, just like how you install Windows 11 or 10 on supported hardware, thanks to Rufus. We had to fiddle with the installation files to bypass the Windows 11 system requirements. Up until now, preparing Windows 11 bootable USB for unsupported PCs was not easy. Prepare Windows 11 bootable flash drive for unsupported computer Some users who have tested the HVCI feature in Windows 10 on processors without MBEC support have noticed performance reductions of up to 40 percent, though this will depend on the tasks you’re doing and the computer you’re using.How to check if your computer supports Windows 11 or not?ĭownload this official Health Check app from Microsoft and run the same to know if your PC is compatible with Windows 11. PCs without processors that support MBEC rely on software emulation called "Restricted User Mode," which does get you the security benefits but affects performance more. It’s easiest to think of MBEC as hardware acceleration for the memory integrity feature, sort of like how AES-NI instructions sped up encryption operations a decade or so ago. MBEC support is only included in relatively new processors, starting with the Kaby Lake and Skylake-X architectures on Intel’s side, and the Zen 2 architecture on AMD’s side-this matches pretty closely, albeit not exactly, with the Windows 11 processor support lists. HVCI can be enabled on any Windows 10 PC that doesn’t have driver incompatibility issues, but older computers will incur a significant performance penalty because their processors don’t support mode-based execution control, or MBEC.Īnd that acronym seems to be at the root of Windows 11’s CPU support list. VBS includes an optional feature called "memory integrity." That’s the more user-friendly name for something called Hypervisor-protected code integrity, or HVCI. Windows 11 (and also Windows 10!) uses virtualization-based security, or VBS, to isolate parts of system memory from the rest of the system.
ArsTechnica gave a great explanation of the hardware requirement:
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