A better question might have been.I can't backup because I've got a FAT32 partition I can't get rid of.as that is your actual problem, and it's a much easier one to solve that the approach you seem to be taking as you could very well end up with an unbootable system if you continue down that path.Instead, try converting the volume to NTFS. Assign the volume a drive letter from Disk Management, let's use Z: for this example. Run the command Convert Z: /fs:ntfs. Remove the drive letter assignment from the volume. Reboot your server.
Windows Move System Reserved Partition
The status is System, Active, Primary Partition. I have another drive with the C: partition. The status is Boot, Page File, Active, Crash Dump, Primary Partition. I've been told that if I remove the disk (it's a bit flaky) with the System Reserved partition, I won't be able to boot up. What I want to do is completely format the entire Disk 2 drive because it is the largest drive I have and move everything on Disk 1 to Disk 2. I don't care for the Windows XP and Ubuntu partitions. I don't care for the Windows XP and Ubuntu partitions.
Windows 10 System Reserved Partition Size
(you'll need to do this before you can configure your backup).and don't forget to test your backup once you've taken one.p.s. A quick search here on ServerFault would have revealed from people with the same problem.