We help IT Professionals succeed at work.

windows  server 2008, windows server 2012 , active directory

can i do an inplace upgrade of windows server 2008 r2 to 2012 r

i believe i need to use iso image of windows server 2012

 how can i migrate  contents ( files and folders)  when i bring up standalone windows server 2012 r2 and want to  migrate contents from windows  server 2008 to 2012

or from from 2012 r2 to 2016 r2
Comment
Watch Question

Adam LeinssSystems Administrator
CERTIFIED EXPERT

Commented:
Can you? Sure.  Should you?  That's a big question!  I would say "it depends".  I've seen it done for servers that don't have a lot running on them.  I would never do it on a DC or anything running SQL server or anything supercritical.  I would make sure you do a snapshot first, try it and check the event log afterward for errors.

As a general rule, I would advise against in-place upgrades for servers, unless you have no other choice.  Microsoft even gives you a warning during the setup advising you that's it's not recommended.
CERTIFIED EXPERT
Distinguished Expert 2019
Commented:
1) joining a 2012 or 2016 as an additional DC will synchronized AD, DNS to the new server.
The AD roles can then be transferred
Requires the ad/forest level might be 2008, sysvol needs to have been migrated to dfs-r from ntfrs.
Pre Windows 2003 R2......
End-user support
CERTIFIED EXPERT
Commented:
For on-premises servers, there is no direct upgrade path from Windows Server 2008 R2 to Windows Server 2016 or later. Instead, upgrade first to Windows Server 2012 R2, and then upgrade to Windows Server 2016.


You can't do an in-place upgrade from a 32-bit to 64-bit architectures or from one build type to another (fre to chk, for example).


https://docs.microsoft.com/en-us/windows-server/get-started/installation-and-upgrade
Shaun VermaakSenior Consultant
CERTIFIED EXPERT
Awarded 2017
Distinguished Expert 2019

Commented:
I assume you are talking about a domain cotroller. I have upgraded many 2008 R2 Domain Controllers directly yo 2012 R2

Best to install AV and ensure that the upgrade advisor does not complain about drivers