There are two primary ways to achieve the goal of moving from one Office 2007 suite to another within the same version, such as moving from Office Standard 2007 to Office Professional 2007. The first option is to leave the existing Office suite on the computer while the new suite is installed. This is known as a side-by-side installation. The second option is to uninstall the existing Office suite and then install the different Office suite. Each of these options has advantages and disadvantages. Regardless of the option chosen, you can use any of the supported deployment options and methods, such as silent installation.

Advantages and disadvantages

The advantages and disadvantages for the side-by-side installation and the uninstall-install option are listed in the following tables.

Side-by-side

Advantage

Disadvantage

Optimized effect on application availability. Minimized network bandwidth usage because of the following: Existing product applications and updates remain installed on the targeted computers. A copy of the compressed source files for the existing Office products remains in the Local Install Source (LIS) on the targeted computers. Only source files of the new product applications are copied to the LIS.

Uninstalling the original Office suite removes the application shortcuts for applications that are shared between the original suite and the new suite. However, these shortcuts are restored after the /repair startup command-line option is run on the new suite.

Uninstall-install

Advantage	Disadvantage
Uninstalling first can be an advantage if disk space is limited on targeted computer or computers.	Application unavailability between uninstalling the original suite and installing the new suite. Additional network bandwidth usage when the new suite and updates are deployed. Computer restart required after uninstalling the original suite and installing the new suite.

Important:
Before moving from one Office suite to another within the same version, verify that the correct product licensing requirements have been met. For more information about licensing, see Microsoft Volume Licensing (http://go.microsoft.com/fwlink/?LinkId=155897) and Emma Explains Microsoft Licensing in Depth! (http://go.microsoft.com/fwlink/?LinkId=157710).

For purposes of description, the example of moving from Office Standard 2007 to Office Professional 2007 is used in the procedures for both options: side-by-side and uninstall-install.

The following table highlights the process and references for a side-by-side installation, which includes the following steps:

1. Leave Office Standard 2007 on targeted computer or computers.

2. Customize Office Professional 2007.

3. Deploy and install Office Professional 2007.

4. Uninstall Office Standard 2007.

5. Repair Office Professional 2007.

Whether you move from a suite that contains fewer applications (such as Office Standard) to a suite that contains more applications (such as Office Professional) — or the other way around — the behavior is the same. For example, the copy of the compressed source files for the existing Office products remains in the LIS on the targeted computers. The product IDs for both installed suites are unique and exist until one of the suites is uninstalled. For more information about product code IDs, see Description of the numbering scheme for product code GUIDs in 2007 Office suites and programs (http://go.microsoft.com/fwlink/?LinkId=157978).

Step	Reference
1. Leave the existing Office suite, which in this example is Office Standard 2007, on the targeted computer or computers.	Microsoft Office 2007 Suite Comparison (http://go.microsoft.com/fwlink/?LinkId=155902)
2. Customize the new Office suite, which in this example is Office Professional 2007. Important: When you customize setup for Office Professional 2007, you have to select the programs that you want to keep from Office Standard 2007. For example, if you installed Microsoft Office Word 2007 and Microsoft Office Excel 2007 from Office Standard 2007 and want to continue to use them, you have to select Office Word 2007 and Office Excel 2007 during the customization for Office Professional — in addition to any new programs that you add, such as Microsoft Office Access.	Customize the 2007 Office system Customize Setup before installing the 2007 Office system Configure feature installation states of the 2007 Office system
3. Deploy and install Office Professional 2007. You can use any of the supported methods to deploy an Office 2007 suite. Note: After you install Office Professional 2007, you see both suites listed. Click Start, click Control Panel, click Programs, and then click Programs and Features.	Deploying the 2007 Office system
4. Uninstall Office Standard 2007. You can uninstall an Office 2007 suite either through the Windows UI (click Control Panel, and then click Add/Remove Programs) or by using the /uninstall command-line option with Setup.exe.	Setup command-line options for the 2007 Office system How to manually uninstall the 2007 Office system if you cannot uninstall it by using the "Add or Remove Programs" feature (http://go.microsoft.com/fwlink/?LinkId=155902)
5. Repair Office Professional 2007. You can repair an Office 2007 suite either through the Windows UI (click Control Panel, and then click Add or Remove Programs) or by using the /repair command-line option with Setup.exe.	Setup command-line options for the 2007 Office system

The following table highlights the process and references for the uninstall-install option, which includes the following steps:

1. Uninstall Office Standard 2007 on a targeted computer or computers.

2. Restart targeted computer or computers.

3. Customize Office Professional 2007.

4. Deploy and install Office Professional 2007.

Step	Reference
1. Uninstall Office Standard 2007 on a targeted computer or computers.	Setup command-line options for the 2007 Office system How to manually uninstall the 2007 Office system if you cannot uninstall it by using the "Add or Remove Programs" feature (http://go.microsoft.com/fwlink/?LinkID=109868&clcid=0x409)
2. Restart targeted computer or computers.	Shutdown
3. Customize the new Office suite, which in this example is Office Professional 2007. Important: When you customize setup for Office Professional 2007, you have to select the programs that you want to keep from Office Standard 2007. For example, if you installed Office Word 2007 and Office Excel 2007 from Office Standard 2007 and want to continue to use them, you have to select Office Word 2007 and Office Excel 2007 during the customization for Office Professional — in addition to any new programs that you add, such as Office Access.	Customize the 2007 Office system Customize Setup before installing the 2007 Office system Configure feature installation states of the 2007 Office system
4. Deploy and install Office Professional 2007. You can use any of the supported methods to deploy an Office 2007 suite. Important: Because a complete uninstall operation was performed, you have to add any previously installed products updates, such as service packs and security updates.	Deploying the 2007 Office system Distribute product updates for the 2007 Office system Error codes for 2007 Office update packages

Using logs to troubleshoot installation and configuration problems in the 2007 Office system

Error codes for 2007 Office system installations