https://kb.parallels.com/en/122702#section4
Shutdown Windows 10, go to Configure > Hardware > + > TPM Chip
https://forum.parallels.com/threads/resolved-cannot-add-tpm-chip-on-intel-mac.357063/
Shutdown Windows 10, go to Configure > Hardware > Boot Order > Advanced...
vm.efi.secureboot=1
Check settings in Windows under Security Processors. It should show all the fields filled in.
Also you can check under tpm.msc
to see notes there.
Windows update wasn't showing Windows 11 as an option and the links on the right did nothing for updating the list.
Downloading the assistant here
https://www.microsoft.com/software-download/windows11
Has a good link for the PC Health Check. Run the PC Health Check and then refresh the assistant, and it should start downloading Windows 11.