I am preparing to migrate from Windows 2008R2 & Exchange 2010SP2 to Windows 2012R2 with Exchange 2013.
Our single domain controller is running Windows 2003 SP2.
Domain functional level: Windows Server 2003
Forest functional level: Windows Server 2003
Is there a good link or document you could furnish so that I follow appropriate steps?
Also, some specific questions.
•Can I retain the Windows 2003 server for the time being? Or does it need to be replaced with a Windows 2008 or higher DC first?
•Does Exchange need to have SP3 prior to being able to add Exchange 2013 on the network and migrate?
Thanks in advance.