Upgrade Exchange 2013 to the Latest Cumulative Update
Topic Last Modified: 2013-07-09
If you have Microsoft Exchange Server 2013 installed, you can upgrade it to the latest Exchange 2013 cumulative update. You can use the Exchange 2013 Cumulative Update wizard to upgrade your current version of Exchange 2013. For more information about the latest Exchange 2013 cumulative update, see Cumulative Updates for Exchange 2013. To learn more about Exchange 2013, see What's New in Exchange 2013.
|After you upgrade Exchange 2013 to a newer cumulative update, you can't uninstall the cumulative update to revert to the previous version. If you uninstall the cumulative update, you remove Exchange from the server.|
Estimated time to complete: 60 minutes
Make sure you read the release notes before you install Exchange 2013. For more information, see Release Notes for Exchange 2013.
Make sure that any server on which you plan to install the cumulative update meets the system requirements and prerequisites. For more information, see Exchange 2013 System Requirements and Exchange 2013 Prerequisites.
Warning: Any customized per-server settings you make in Exchange XML application configuration files, for example, web.config files on Client Access servers or the EdgeTransport.exe.config file on Mailbox servers, will be overwritten when you install an Exchange Cumulative Update (CU). Make sure that you save this information so you can easily re-configure your server after the install. You must re-configure these settings after you install an Exchange CU.
After you install a cumulative update, you must restart the computer so that changes can be made to the registry and operating system.