I've got a Dell PowerEdge T440 running Windows Server 2016 Standard. This server came from Dell with the OEM Windows Server 2016 OS installed. When the OS was installed I guess five partitions were created. This is causing a problem because I am trying to configure Azure Site Recovery (ASR), and ASR only supports disks with four partitions or less. Specifically, I am getting the error code 95412 from ASR during the Enable Replication step of Site Recovery configuration. I need help figuring out how I can reduce the number of partitions from five to four. See the output from Diskpart below. I can't get rid of partitions 1, 3, 4, or 5. That leaves partition 2. Even then, I am not sure I should get rid of partition 2. 

Also, if anybody can explain why System and Reserved are separate partitions, I'd love to know the explanation. I am familiar with System Reserved being one partition, not two. 

DISKPART> list disk

Disk ### Status Size Free Dyn Gpt
-------- ------------- ------- ------- --- ---
Disk 0 Online 3352 GB 1647 GB *
Disk 1 Online 1863 GB 18 MB

DISKPART> select disk 0

Disk 0 is now the selected disk.

DISKPART> list par

Partition ### Type Size Offset
------------- ---------------- ------- -------
Partition 1 System 650 MB 1024 KB
Partition 2 OEM 100 MB 651 MB
Partition 3 Reserved 128 MB 751 MB
Partition 4 Recovery 3072 MB 879 MB
Partition 5 Primary 1700 GB 3951 MB

 

TL;DR. WS 2016 server came with five partitions from Dell. I need to reduce the number of partitions to four. partitions.