Raising Current Domain Functional Level

Question

Hi Fellas,
I've been trying to raise our Functional Domain level but have had no joy.
DCs are:
2019 Server - Master
2012 R2
2008 R2 Enterprise

I would appreciate it if someone could show me how to get around this. Should I drop the 2008 R2? will it raise it automatically to the 2012 R2?
My end goal it to configure "Device-Writeback" for MS Endpoint Manager but the 2008 R2 is stopping me.

Answer 1

Hi @John Bamba

I would appreciate it if someone could show me how to get around this. Should I drop the 2008 R2? will it raise it automatically to the 2012 R2?

If you want raise the functional level to Windows 2012 R2 you have to demoate the domain controller 2008 R2.

If you want raise the functional level to Windows 2016 , you have to demote DC 2008 R2 and DC 2012 R2.

The domain functional level cannot be higher than the Operating System version of all domain controller in domain.
The Forest functional level cannot be higher than the Operating System version of a all domain controller in the forest
Please don't forget to mark helpful answer as accepted

Answer 2

Since you still have a 2008 R2 domain controller; 2008 R2 domain functional level will be as high as it can be raised.

--please don't forget to upvote and Accept as answer if the reply is helpful--

Answer 3

Just checking if there's any progress or updates?

--please don't forget to upvote and Accept as answer if the reply is helpful--