Article ID: 912309 - View products that this article applies to.
This article discusses how to upgrade Microsoft Windows Server 2003 with Service Pack 1 (SP1) to Windows Server 2003 R2. This article does not discuss how to upgrade earlier versions of the Windows operating system to Windows Server 2003 R2. This article assumes that Windows Server 2003 SP1 is already installed. This article does not cover scenarios where Windows Server 2003 SP1 is not installed. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
810613Note Microsoft Windows Small Business Server Service Pack 1 is not upgradeable to Windows Server 2003 R2.
(http://support.microsoft.com/kb/810613/ )Supported paths for upgrading to Windows Server 2003 or to Windows Small Business Server 2003
Windows Server 2003 R2 is unavailable as a stand-alone update for existing Windows Server 2003 installations that are not running SP1.
The following items are required to upgrade to Windows Server 2003 R2:
Windows Server 2003 R2 CDsWindows Server 2003 R2 comes on two CDs. Windows Server 2003 R2 CD1 is almost identical to a CD that contains a slip-streamed version of Windows Server 2003 with SP1. Windows Server 2003 R2 CD2 contains the Windows Server 2003 R2 files. CD2 is not media-specific. However, CD2 is stock-keeping unit (SKU)-specific, platform-specific, and language-specific. For example, only Windows Server 2003 R2 Standard Edition CD2 can be applied to Windows Server 2003 Standard Edition. Microsoft ships both the x86-based version and the x64-based version of Windows Server 2003 R2 on CD2. Typically, only Windows Server 2003 R2 CD2 is required to update from Windows Server 2003 with SP1.
Windows Server 2003 R2 channels, SKUs, and product keysWindows Server 2003 R2 media is released by using the following channels:
The following table shows supported channel upgrades for Windows Server 2003 R2.
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For more information, click the following article number to view the article in the Microsoft Knowledge Base:
The product key you entered is not valid. Please type a valid product key.
(http://support.microsoft.com/kb/889713/ )How to determine the channel that your copy of Windows Server 2003 was obtained through
Media for Windows Server 2003 R2 is released by using various SKUs, such as Windows Server 2003 R2 Standard Edition, Windows Server 2003 R2 Enterprise Edition, and Windows Server 2003 R2 Datacenter Edition. Product keys are unique for each SKU. Only a Windows Server 2003 Standard Edition product key works with Windows Server 2003 Standard Edition media. If you use the wrong product key for the SKU that you have installed, you receive the following error message:
The following table shows supported SKU upgrades for Windows Server 2003 R2.
Setup cannot continue because the operating system edition is different from the setup edition.
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The Windows files that are used to validate the product key are from the installed Windows operating system. These files are not present on Windows Server 2003 R2 CD2.
Windows Server 2003 R2 platformsTo upgrade from Windows Server 2003 with SP1 to Windows Server 2003 R2, platforms must be identical as follows:
Windows Server 2003 R2 language versionsThe installed language versions must be identical. For example, you can only upgrade a German language installation of Windows Server 2003 with SP1 by using a German language version of Windows Server 2003 R2. You cannot upgrade an installed German language version of Windows Server 2003 by using a French version or any other language version.
Upgrade optionsWarning Take standard failure recovery precautions before you try to upgrade Windows. For example, we recommend that you back up a server before you try to upgrade it. We also recommend that you have one or more additional domain controllers online and that you remove Active Directory from the domain controller before you try to upgrade the operating system.
To upgrade a Windows Server 2003 SP1 installation to Windows Server 2003 R2, use one of the following three options. We recommend option 1 because it is easiest to implement. However, you must use option 2 or option 3 if the channel, the SKU, or the product key does not match the existing Windows Server 2003 installation. Option 1 is available only when all these items match. If the language version does not match, you cannot upgrade. In this case, you must perform a clean installation.
Option 1: Use Windows Server 2003 R2 CD2 and a Windows Server 2003 R2 product key
Option 2: Run the Setup program from Windows Server 2003 R2 CD1, and then upgrade by using Windows Server 2003 R2 CD2
Option 3: Use Windows Server 2003 R2 CD1 to repair the existing installationIf option 1 and option 2 are unavailable, you must use option 3 to upgrade. For example, OEM channel media does not allow for an upgrade. Therefore, if you have OEM media and an OEM Windows Server 2003 R2 key and you try to upgrade from any other channel type, you can only use option 3.
Note When you repair an installation, start from a CD, and then let the Setup program detect the currently installed Windows version. When Setup prompts you to repair, accept that option. The repair option updates the installed operating system. For certain channel types that have limited upgrade capabilities, you can update the installed media by using media that was obtained from a different channel.
Use the procedure that is described in the following Microsoft Knowledge Base article to repair the existing installation:
After you repair the installed operating system, you must install all post-Windows Server 2003 SP1 hotfixes and security updates. Third-party drivers that replaced drivers that were in-box drivers must be reinstalled.
(http://support.microsoft.com/kb/816579/ )How to perform an in-place upgrade of Windows Server 2003
Article ID: 912309 - Last Review: August 25, 2008 - Revision: 4.0