Windows 11 requires TPM 2.0 security processor to install or upgrade to Windows 11. Intel and AMD built firmware TPM technology into many of their CPUs that perform the same functionality as a TPM 1.0 processor. TPM is a dedicated security processor used to perform hardware-based cryptographic functions to secure encryption keys and prevent tampering with hardware drivers and the boot process. Last week, ASUS announced they had released new BIOS updates for 207 motherboard models that automatically enable the built-in TPM processor on supported CPUs.
Source: https://www.bleepingcomputer.com/news/microsoft/new-asus-bios-updates-enable-tpm-20-support-for-windows-11/