Determine which disk partitions are used by Windows 10

Question

After removing a quad-boot from my laptop and leaving only Windows 10, I'm left with 9 partitions between 2 disks. I can identify the primary Windows 10 partition, the EFI, and OEM partitions. How can I tell, of the 3 remaining Recovery Partitions and ~18GB primary partition, which are being used by Windows 10?

Here are the allocated partition sizes (Windows 10, on C, is on Disk 1)

(there are two additional unallocated partitions, of course)

Answer 1

Run Reagentc /info command to know its disk and partition number.