This blog will walk you through the steps of a typical Exchange Server 2010 Installation. Be sure to follow the instructions in my “Installation of Exchange Server 2010 Prerequisites” blog.
Since this is an SMB customer, I’m choosing to perform a “Typical Exchange Server Installation”. The installation defaults to the “C” drive. I recommend having the operating system on the “C” drive and the installation of Exchange on a data drive. I chose “D” in the example shown below. If you want to keep the default path which I did, you’ll have to manually build it since the installer doesn’t give you the option to just change the drive letter.
Select the appropriate option. I chose “No” in the example below. If you do have Outlook 2003 clients in your environment, I recommend upgrading them before installing Exchange 2010 if at all possible.