Security News > 2021 > June > Windows 11 won't work without a TPM - What you need to know
Windows 11 requires a TPM 2.0 security processor to install or upgrade to Windows 11.
Yesterday, Microsoft announced the system requirements to upgrade or install Windows 11 and included a new PC Health Check tool that you can use to check if your hardware is compatible with Windows 11.
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 as they do not have a TPM 2.0 installed.
Since 2013, Intel and AMD added firmware TPM technology to many of their CPUs that perform the same functionality as a TPM 2.0 processor without the need of a dedicated module.
While they support TPM, it is usually required that you purchase and install the appropriate dedicated TPM that is compatible with your motherboard and then enable it in the BIOS. However, since Windows 11 considers TPM 2.0 and the Intel PTT and AMD PSP fTPM CPU features to be equivalent, most people who have purchased a CPU over the last 5-7 years do not need to buy a dedicated TPM for their motherboard.
Instead, to achieve Windows 11 hardware compatibility, you just need to enable Intel PTT or AMD PSP fTPM support in your BIOS. Once you enable Intel PTT or AMD PSP fTPM support in the BIOS, even if you do not have a dedicated TPM 2.0 module, the PC Health Check tool will still consider your hardware compatible with Windows 11.