As many may have realized the Cheap Office 2010 installer shipping with Dell systems (even on 64-bit OS's) will only install Office 32 bit. To install Office 64 bit on a compatible 64-Bit OS please follow the following steps.

1. Ensure Office 64-bit is what you need, there are some limitations, review them here: http://technet.microsoft.com/en-us/library/ee681792.aspx#BKMK_Disadvantages

2. Uninstall all versions of Microsoft office and make sure none are listed in Programs and Features.

3. Restart and go to http://www.softwaredownloadfree.info

4. Sign into or create a new Windows Live account.

5. Put in your Product Key, select Language and enter the correct Captcha.

6. Confirm order details. (You can order a backup DVD this way as well)

7. (Do NOT click on Download) Select the Advanced Options that is listed below the Download link.

8. Select 64-Bit to begin the download for the 64-bit installer.

WARNING: Office 2010 64-bit is NOT compatible with WIndows XP 64.