When I try to install, the installation process nearly finishes and I get this error:

Error 1722. There is a problem with this Windows Installer package. A program run as part of the setup did not finish as expected. Contact your support personnel or package vendor.

After which, the installer immediately reverses and rolls back. I can't find any information on this error :(

I'm running Windows 7 Ultimate, exceed all of the requirements for Office 2010.