OK, with UEFI systems, it uses only the one EFI System partition, as you stated earlier.
The recovery partition is created as necessary. I do not know for sure what the partitions on Disk 2 are but I assume they are left over Dell recovery partitions. Had you checked the reagentc /info command before the clean install, you would have known where the Original Win 11 Recovery Tools Partition was.
The upgrade does what upgrades do and created a new partition on the second drive to try to keep it together with the OS.
Maybe I am missing your point. So starting from a Clean Disk 1, what would you have expected to see after the clean install? Do you feel the original install should have added the Recovery partition on Disk 1?
There are many unknowns in your process. The 150 MB System EFI partition, I assume you pre-partitioned the drive in some manner. Since you have the 13 MB unallocated space at the end of Disk 2, that install may have been a clone from a Dell system. And a normal Windows install will not create a 1 GB recovery tools partition.
"If you really want to test, do it with clean drives, and start with just the primary install, then add the second drive and install to it. I am not asking for clarification, just pointing out the situation. An install will do what it needs to do, based on your configuration. If you test, let us know what happens."
Hi again,
The Disk 2 SSD is the same it was when it came from the factory, nothing was changed on that including the 150MB EFI partition. Since I have a backup I can always restore it with the same layout.
Disk 1 SSD was added to install Windows 11 and the clean install setup should have added the recovery partition on first try, not after an Update in place.
What you suggest in your last comment was already tried and did not make any difference.
It created the correct 4 partitions on the first install EFI, MSR, Windows, Recovery
Then the second install on the second drive just created 2 partitions MSR and Windows, no recovery.
EFI minimum is 100MB can be bigger, it is 150 on the original Dell probably because they have multiple recovery boot options. I saw that already had 90MB occupied.
The EFI can be 260MB, I have that size on multiple of my machines. That is required when you use 4K sectors disks. Here is another sample on a different UEFI machine: