Hi All,

Need some advised here, 

I am about to migrate Exchange 2007 with Windows Server 2003 to Exchange 2013 with Windows Server 2012 R2.

Which one should I migrate first? Windows Server or Exchange?

I tried to search it, i am a bit confuse with some of the answer. If someone can give some ideas, it will be great.

Thanks,

First try to migrate your AD infrastructure to 2012 sever and then try exchange.

Regards

John

Hi  Yazid,

PLease follow Link Below. " It's the Exchange Server 2013 Deployment Assistant '

https://technet.microsoft.com/en-us/library/jj218681(v=exchg.150).aspx

You Will find Steps that may be of help.

Regards,

Ronald

First try to migrate your AD infrastructure to 2012 sever and then try exchange.

Regards

John

• Proposed as answer by Johnpaul J 18 hours 22 minutes ago

I'm not really sure what you are asking here.  If you are asking here.  I think you need to upgrade your Domain Controllers AND Exchange to 2012R2 and Exchange 2013.  

I'm going to assume that they are going to be different servers.  I would probably do the Exchange Migration first (assuming that you already at a supported level for Exchange 2013 https://technet.microsoft.com/en-us/library/aa996719%28v=exchg.150%29.aspx)

Also, before you actually make the change to your Domain Functional level, take a look at this blog post.

http://blogs.technet.com/b/exchange/archive/2015/02/13/considering-updating-your-domain-functional-level-from-windows-2003-read-this.aspx

Hi,

It's recommended to upgrade your AD from Windows Server 2003 to Windows Server 2012 R2 firstly. Then you can migrate from Exchange 2007 to Exchange 2013. 

Make sure your Exchange 2007 version is Exchange 2007 SP3 RU15 or later.

http://blogs.technet.com/b/rmilne/archive/2013/09/17/exchange-support-for-windows-server-2012-r2.aspx

Best regards,

Also, you may refer to this informative technet resource that covers all the required steps while doing the migration between exchange 2007 and 2013 : http://blogs.technet.com/b/meamcs/archive/2013/07/25/part-1-step-by-step-exchange-2007-to-2013-migration.aspx

Moreover, if you wish, you may also check this automated software (http://www.exchangemigrationtool.com/) that provides a hassle-free environment to accomplish this task in more easier way.