New OEM Partition after 1903 Update

Megahertz said:

Kari, what should be the correct order:
(EFI) - (C:) - (WinRE_DRV) - (D:) - (581M OEM) ?

As I mentioned, the correct place for recovery partition is directly after C:, the Windows partition.

Kari

Megahertz said:

NavyLCDR reported that on a 1903 clean install there is no more the Recovery partition.
No recovery partition in 1903?

That post is about an MBR disk. The OP in this thread has a GPT disk, according to screenshot in post #5.

I did now a test clean install of official version 1903 install media on a UEFI system with GPT disk, with default settings. The Recovery partition is there:



Laptop I am using to write this post is running a fresh, clean MDT deployment of Windows Insider build 18936, Recovery partition is there, although because of MDT, it's in correct place:



… and is correctly assigned:



Short: at least on GPT disks, like in OP's case, the recovery partition will be created.

Kari

Thanks, everyone. Partition Wizard worked just fine.

Kari said:

… and is correctly assigned:



Kari

Quick question, Kari: according to the partition guidelines you posted before, the correct BCD ID for the recovery partition is DE94BBA4-06D1-4D40-A16A-BFD50179D6AC. Your screenshot of the recovery partition uses the BCD ID of 1DB0C58F-9E73-11E9-9219-85D9FC6C84EF, which doesn't seem familiar. Did the guidelines for the proper ID for the recovery partition change after publication of the guidelines linked previously? Or is this just an error, or am I misunderstanding the ID field?

slinkygn said:

Quick question, Kari: according to the partition guidelines you posted before, the correct BCD ID for the recovery partition is DE94BBA4-06D1-4D40-A16A-BFD50179D6AC.

Your screenshot of the recovery partition shows the ID of 1DB0C58F-9E73-11E9-9219-85D9FC6C84EF, which doesn't seem familiar

What your screenshots shows is the unique boot entry ID. It is not the same thing than Type ID, which must always be DE94BBA4-06D1-4D40-A16A-BFD50179D6ACo on a GPT disk.

Boot entry ID is always unique. It is a 32-bit hexadecimal value, which means that the value in decimal can be anything between 0 and just under 4.3 billion (2³² − 1, exactly 4,294,967,295). Each boot entry, on each device, has unique ID for each entry.

If you do a clean install letting Windows partition the system disk, or if you do an automated deployment, a unique ID is created for WinRE partition.

The fact that my WinRE partition ID does not seem familiar to you is not only natural, as it should be. It also proves the point: partition ID is unique.

Kari