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After you install a program that uses the Microsoft Windows Installer, you may receive the following error message when you try to start the program:
This application must be installed before you can use it.
When you open the Add or Remove Programs item in Control Panel, you see that some programs that are installed on your computer may not appear in the list of currently installed programs.
Note Programs that use the Windows Installer include Microsoft Office programs.
This problem occurs if the following conditions are true:
A program is installed by using the Windows Installer.
The program is installed for all users who use the computer.
The local system (NT AUTHORITY\SYSTEM) account profile is deleted, or a temporary profile that is configured for the local system account is deleted.
Note The local system account is a service account that is used by the Windows operating system.
A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem.
If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, submit a request to Microsoft Customer Service and Support to obtain the hotfix.
Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:
Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.
No prerequisites are required.
You must restart your computer after you apply this hotfix.
Hotfix replacement information
This hotfix does not replace any other hotfixes.
The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
When you delete a profile by using the System item in Control Panel, the DeleteProfile function is called. When the DeleteProfile function removes a profile that is associated with the Windows Installer, the following registry subkey is removed: