daknetworks.com

CURRENTLY:

-we are at EXCHANGE 2013 15.9.516.32 aka RTM
(You can find yours by typing: get-exchangeserver | fl AdminDisplayVersion)
(Visit the following for the current version list: https://technet.microsoft.com/en-us/library/hh135098%28v=exchg.150%29.aspx)
-underlying OS is WINDOWS SERVER 2012 STANDARD
-verified we have .NET 4.5 installed

AVAILABLE:
-CU5 15.0.913.22
-SP1

STEPS:
-only need CU5
(CU4 aka SP1 is not needed. All CU's are full updates and are not dependent upon previous CU's in any way.)
-downloaded CU5 to the server.

BACKUP AD
Take a confirmed backup of Active Directory

BACKUP EXCHANGE DB
Take a confirmed backup of your existing Exchange 2013 servers and databases

VERIFY AD HEALTH
-DCDIAG
-REPADMIN /SYNCALL

EXTRACT CU INTO ROOT DIRECTORY
-c:\Exch2013CU5

PREPARE AD LEVEL1
-setup.exe /PrepareSchema /IAcceptExchangeServerLicenseTerms

VERIFY AD HEALTH
-repadmin /showreps
-DCDIAG

PREPARE AD LEVEL2
-Setup.exe /PrepareAD /IAcceptExchangeServerLicenseTerms
-Setup.exe /PrepareAllDomains /IAcceptExchangeServerLicenseTerms

SET EXECUTIONPOLICY
-click START > ALL PROGRAMS > ACCESSORIES > WINDOWS POWERSHELL
-get-executionpolicy –list
-get-executionpolicy
-Set-ExecutionPolicy Unrestricted
-get-executionpolicy

ADD RSAT TOOL
-click Manage > Add Roles and Features > Features
-Expand to RSAT > FAT > FCT > FAILOVER CLUSTER COMMAND INTERFACE
-checkmark it
-click NEXT
-click INSTALL

PERFORM THE UPGRADE
-Setup /m:upgrade /IAcceptExchangeServerLicenseTerms

SET EXECUTIONPOLICY
-click START > ALL PROGRAMS > ACCESSORIES > WINDOWS POWERSHELL
-get-executionpolicy –list
-get-executionpolicy
-Set-ExecutionPolicy RemoteSigned
-get-executionpolicy

=================
FRIENDLY WEBSITES
=============================================
http://enterpriseit.co/microsoft-exchange/2013/prepare-ad-prepare-schema/
http://blog.jasonsherry.net/2014/05/28/exchange-2010-sp3-ur6-and-2013-cu5-released/
http://windowsitpro.com/blog/exchange-2013-cu5-a-good-update
http://exchangeserverpro.com/exchange-server-2013-cumulative-update-5-released/
http://msexchangeteam.in/how-to-backup-exchange-server-2013-database-part-1/