Microsoft is offering Office Professional Plus 2010 Beta ( 32-bit and 64-bit) as Free Download with genuine working license that expires in October 2010.
Download Directions Microsoft Office Professional Plus 2010 Beta – requires registering or signing in with a Windows Live/Passport account. The download is 684 MB. Also, download Visio 2010 beta and Project 2010 beta .
This requires 3.5 GB of free space and works on all Windows XP SP3 (32-bit), Windows Vista SP1 (32-bit or 64-bit), Windows Server 2003 R2 (32-bit or 64-bit), Windows Server 2008 SP2 (32-bit or 64-bit) and Windows 7 (32-bit or 64-bit).
If you are installing Office 2010 beta for the first time, the default settings will upgrade your existing copy of Microsoft Office. Microsoft is suggesting users uninstall previous versions of Office before downloading. Read How to uninstall the 2007 Office system if you cannot uninstall it by using the "Add or Remove Programs" feature or use Windows Installer CleanUp Utility for office 2003.