Just received a new tower with Windows 7 Home Premium 64-bit operating system. I researched several postings that said that my existing Office 2007 Standard package was fully compatible with no adjustments required. I also noted a couple of postings that recommended that I remove the preinstalled Office 2010 trial package before attempting my 2007 download, which I did. The install starts and accepts my product code, and it can 'see' the disk in the E-drive, but it gives me an error message that the pathway does not recognize any compatible software to load. Since I flunked the Downloading for Dummies class, can anyone give me some simplified directions?