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To switch between 64 and 32-bit modes on your 64-bit supported Mac, you can use either of these methods:

Method 1: Startup key combination (for current startup only)

• If your Mac uses the 32-bit kernel by default, but supports the 64-bit kernel, you can start up using the 64-bit kernel by holding the 6 and 4 keys during startup.
• If your Mac uses the 64-bit kernel by default, you can start up with the 32-bit kernel by holding the 3 and 2 keys during startup.

Your Mac will revert to the default kernel the next time you reboot it.

Method 2: On-disk setting (persistent)

To select the 64-bit kernel for the current startup disk, use the following command in Terminal:

sudo systemsetup -setkernelbootarchitecture x86_64

To select the 32-bit kernel for the current startup disk, use the following command in Terminal:

sudo systemsetup -setkernelbootarchitecture i386

Note: This setting is stored in the /Library/Preferences/SystemConfiguration/com.apple.Boot.plist file and will take effect every time you start up from this disk. If you start up from a different disk, the setting on that disk, or the hardware default, will take effect.

In Mac OS X, how do I uninstall Microsoft Office?

Note: Currently, the Remove Office tool is not available for Office 2011.

To remove Microsoft Office from your Mac OS X computer, use the Remove Office tool provided by Microsoft.

Note: The Remove Office tools will not delete documents you have created with Office programs unless they are located in the application folders for Microsoft Office. If you have documents you want to keep in any of the application folders, move them to a different folder before using the tool.

1. To find the Remove Office tools, open the Microsoft Office 2008 folder or the Microsoft Office 2004 folder, and then open the Additional Tools folder.

2. For instructions, read the Read Me file in the Remove Office folder.
3. When you run Remove Office, it will allow you to remove installations of Microsoft Office 98 through 2008 as well as related preferences and system files. Once you have run the program, it places the removed Office components in the Trash.