KB Articles: Security bulletins:. This update contains several improvements to enhance security, stability, and performance, including fixes for vulnerabilities that an attacker can use to overwrite the contents of your computer's memory with malicious code. For detailed information about this update, please visit the. Important To prevent an issue that might occur during the installation, you must quit all Office and Messenger applications that are running before installing this update.

For more information about the issue, see. Applies to: Office 2008, Office 2008 Home and Student Edition, Office 2008 Special Media Edition, Word 2008, Excel 2008, PowerPoint 2008, Entourage 2008. To install this update. Print this page if you want to use it as a reference when you are offline. Quit any applications that are running, including all Office applications, Microsoft Messenger, and Office Notifications, because they might interfere with installation. Make sure that your computer meets the minimum system requirements.

Click Download, or click the link for the language version that you want. Follow the instructions on the screen to save the file to your hard disk. If you are using Safari, the downloaded file is saved to the desktop unless you specified a different location in the Preferences dialog box of Safari. To check your preferences, on the Safari menu, click Preferences, and then click General. Double-click the file you downloaded in step 5 to place the Office 2008 SP1 Update (12.1.0) volume on your desktop, and then double-click the Office 2008 SP1 Update (12.1.0) volume to open it. This step might have been performed for you.

In the Office 2008 SP1 Update (12.1.0) volume window, double-click the Office 2008 SP1 Update (12.1.0) application to start the update process, and then follow the instructions on the screen. If the installation finishes successfully, you can remove the update installer from your hard disk. To remove the update installer, first drag the Office 2008 SP1 Update (12.1.0) volume to the Trash, and then drag the file that you downloaded to the Trash. Note This update is also available from Microsoft AutoUpdate, an application that can automatically keep your Microsoft software up to date.

To use AutoUpdate, open an Office application, and then on the Help menu, click Check for Updates. To remove this update This update does not include an uninstall feature. To restore your application to its original state, delete it from your hard disk, reinstall it from your original installation disk, and then install the updates that you want. If you have trouble installing this update or using Office 2008 applications after you install them, try the following:.

Make sure that the Microsoft Office 2008 folder is located in the Applications folder on the startup volume. If it is at another location on your computer, move it to the Applications folder on your startup volume, and then try installing the update again.

Restart your computer and try installing the update again. Make sure that the user account you use to authenticate the update installer is an administrator account. For more information about administrator accounts, see Mac Help. Make sure that you downloaded the correct language version of the update for your copy of Office. If you rename or modify any of the files in the Microsoft Office 2008 folder, you cannot install product updates. To correct this issue, drag the Microsoft Office 2008 folder to the Trash, and then reinstall Office 2008 from your original installation disk. If you experience problems opening Office applications after you install this update, restart your computer.

If you continue to experience problems after you restart, reinstall Office from your original installation disk, and then install this update again. For additional assistance, visit the at www.microsoft.com/mac.

On this page:. Office 2008 and 2004 Note: In Office for Mac, the Equation Editor is typically installed by default. To check to see if it is installed, see the following path location, replacing version with the version of Office you have installed: Applications Microsoft Office version Office Equation Editor If it is not installed already, to add Equation Editor:.

On the desktop, double-click the Microsoft Office 2008 or Microsoft Office 2004 icon. Note: If you are installing a copy downloaded from, you should have a.dmg file on your desktop. Usually, Mac OS X will automatically mount this file. If it doesn't, double-click the.dmg file to mount it and start the install process.

The setup window will offer one or two installation options, depending on which version of Office you are installing:. The first option is available in both Office 2008 and 2004.

In Office 2008, it is labeled Office Installer. In Office 2004, it is labeled Office Setup Assistant. Follow the instructions below to use one of these tools. The second option is available only in Office 2004, and is labeled Office 2004.

Installing Office 2004 For Mac Mac

To install all Office 2004 applications and components (such as the Equation Editor), drag and drop this icon into your Applications folder. Run the Office Setup Assistant or Office Installer, following steps 1 through 4 in the installation. If you are prompted to select your installation location, either choose the location of a current Office installation, or select the location you'd like to use for a new installation. In the box of customizable options, click the arrow next to Office Tools and select Equation Editor. Click Install. To use the Equation Editor in an Office application. Open the desired Office application.

Click Insert, and then Object. In the list of Object types, choose Microsoft Equation (this will open the Equation Editor). In the Equation Editor window, form your equation; when finished, click the red X in the upper right to close the window. After a moment, the equation will appear in the application.