- Nov 6, 2016
Windows 11 won't work without a TPM - What you need to know
Windows 11 requires a TPM security processor to install or upgrade to Windows 11. Unfortunately, there has been a lot of confusion about what type of TPM you need and why you need it in the first place.
However, after many people ran the tool, they discovered it was reporting that "This PC can't run Windows 11," even on devices that run Windows 10 flawlessly.
For those with hardware purchased over the past couple of years, the likely reason you see this message is that your computer does not have a Trusted Platform Module (TPM) installed.