When you try to install Microsoft Office, you receive the following error message: If you click Retry, you receive the following error message: This happens even when you clean boot the computer.

Additionally, you may receive the following error message:

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There are multiple resolutions that may correct this problem. For maximum effectiveness, attempt the following resolutions in the order in which they are listed:

1.	Install the version of the Windows Installer on the Office XP CD-ROM.
2.	Log on as "Administrator" (Windows NT 4.0 and Windows 2000 only).
3.	Check for alternate installation locations.
4.	Turn off and/or remove anti-virus software.
5.	Test for a damaged CD-ROM or faulty CD-ROM drive

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Install the version of the Windows Installer on the Office XP CD-ROM

This error message can be caused by a problem with the Windows Installer software and some CD-ROM drives. Installing an updated version of the Windows Installer may resolve this problem. When you perform step 6, make sure that you select the step that is appropriate for your computer's operating system.

Note Visit the following Microsoft Web site, and install the latest Microsoft Windows 2000 service pack: To install the updated version of the Windows Installer, follow these steps:

1.	Insert the Microsoft Office XP CD1 into your CD-ROM drive or DVD-ROM drive.
2.	Double-click the My Computer icon on your desktop.
3.	In the My Computer window, right-click your CD-ROM drive, and then click Open.
4.	Double-click the Files folder.
5.	In the Files folder, double-click the Support folder.
6.	Follow the step that is appropriate for your operating system. • Microsoft Windows 98, Microsoft Windows 98 SE, or Microsoft Windows Millennium Edition (Me): Double-click InstMSI.exe to run it and install the update. • Microsoft Windows NT 4.0: Double-click InstMSIW.exe to run it and install the update. • Microsoft Windows 2000: Double-click Q282879.exe to run it and install the update.
7.	After the installation of the Windows Installer update is complete, you must restart your computer. Then start Setup again to complete the installation of Microsoft Office XP.

Note If you are using Windows 2000 and do not find the Windows 2000 update on your Office CD-ROM, you can install the latest Windows 2000 service pack. This update includes an updated Windows Installer. To install the latest service pack, visit the following Microsoft Web site, and then click Scan for Updates. For more information about how to obtain the latest Windows 2000 service pack, click the following article number to view the article in the Microsoft Knowledge Base: Note For Windows 2000, this update requires that the language of Windows match the language of Office that you are installing. Therefore, the files available on the CD-ROM for the English version of Office XP do not update a non-English version of Windows 2000. To obtain the update, download and install the Windows 2000 SP2 Update from the Windows Update Web site.

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Log on as "Administrator" (Windows NT 4.0 and Windows 2000 only)

If your operating system is Microsoft Windows 2000 or Microsoft Windows NT 4.0, log on as the user "Administrator" and attempt to install Office.

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Check for alternate installation locations

If your computer contains more than one CD-ROM-compatible drive (for example, another CD-ROM drive, a DVD-ROM drive, or a CD-RW drive), and if you receive the error message in the "Symptoms" section of this article, run Setup by inserting the CD-ROM into the secondary drive. In most cases, the problem does not occur when you run Setup using the secondary drive.

Or, if your computer is connected to a network, you may be able to share the Microsoft Office XP CD-ROM in another computer's CD-ROM drive. If you are able to share another computer's CD-ROM drive, insert the Microsoft Office XP CD-ROM into that drive, and, from your workstation, connect to the other computer and run Setup.

For example, if the other computer's name is "server" and its CD-ROM drive is shared as "cdrom", follow these steps to run Setup from your computer:

1.	On the Start menu, click Run.
2.	In the Open box, type the following path: \\server\cdrom\setup.exe
3.	Click OK.

You should now be able to proceed normally through Setup. If not, please proceed to the next step.

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Turn off and/or remove anti-virus software

It is possible that running anti-virus software may cause this problem to occur. If you have anti-virus software installed on your computer, you may need to turn off or even remove it before you can install Microsoft Office XP. For instructions on how to do this, please consult your anti-virus software documentation, or contact your anti-virus software vendor.

After you turn off or remove your anti-virus software, run Setup. If the problem still occurs, cancel Setup, and proceed to the next step.

Note After you complete this step, you can turn on or reinstall your anti-virus software at your convenience. Microsoft uses a comprehensive process to ensure that all Microsoft software is free of viruses. Because Microsoft Office XP is only sold on CD-ROM, it is not possible for a virus to infect Office CD-ROMs.

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Test for a damaged CD-ROM or faulty CD-ROM drive

Verify that your CD-ROM drive or DVD-ROM drive can correctly read the CD-ROM. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

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Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

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