How to migrate old Parallels Desktop VM to UEFI and GPT for Windows 11?

convert the machine to GPT using
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How to convert MBR to GPT drive to switch BIOS to UEFI on Windows 10 | Windows Central

The VM will then fail to boot up, so you have to change the config.pvs file for the VM to set EFI Enabled to 1. Save the file and close it.

Once you've done that, you'll be able to add a TPM to the machine in the Parallels GUI

참고 자료

KB Parallels: Use virtual Trusted Platform Module (TPM) in Parallels Desktop

Virtual Trusted Platform Module (TPM) is a cryptographic component that can be added to Windows 10 and newer virtual machines (VM) with UEFI BIOS. Virtual TPM is an optional layer of security for a virtual machine and allows you to protect data from unauthorized access and use additional Windows security features.

KB Parallels: Use virtual Trusted Platform Module (TPM) in Parallels Desktop

KB Parallels: Use virtual Trusted Platform Module (TPM) in Parallels Desktop

https://kb.parallels.com/en/122702

KB Parallels: Use virtual Trusted Platform Module (TPM) in Parallels Desktop

KB Parallels: Use virtual Trusted Platform Module (TPM) in Parallels Desktop