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[Server 2012R2 / 2016] Do i need to use adprep or not?

Tags: Microsoft

Hi, this is my first post.

I plan to upgrade a network with multiple windows server 2012R2 to windows server 2016 like this:

First I add 2016 servers (which will then be at the 2012R2 AD level) and move functions to them.

I make some of the 2016 servers to DC (still 2012R2 level).

I’m demoting and phasing out 2012R2 servers that no longer have any functionality.

When all 2012R2 servers are disconnected, I raise the AD level to 2016.

My question is: Now that I’m going to install my first 2016 server and make it to DC, do I need to run “adprep” on it? If so, how?

Exactly what does “adprep” fill for function? What does it do?

Grateful for all the answers.

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