Restoring Partitions Backed up With Multiple Jobs

[Skeeter]

Background:
I have a Dell computer with three partitions: OEM, Recovery, Windows (C:\). The OEM partition has an unknown file system and is not backed up. I have two jobs, one backs up Recovery and Windows. The other job backs up the OEM partition with the RAW setting.
Question:
Can I restore the OEM partition and then restore the other two partitions on top of the OEM partition, to end up with the original three partitions?
If not, is there another way to backup all three partitions? If I turn on RAW in the job that otherwise backs up Recovery and Windows, I get volume locked by another user.

[Skeeter]

While the question may be of some interest, I need to note that the background describes my experience with BR17 CE. Since purchasing and installing Hard Disk Manager 17 Advanced, I have noticed that all three partitions are being backed up with a single job. Therefore, I have no need for an answer to my question.