This is the 32 bit edition of Windows 7 Professional Windows 7 Professional includes all the Home Premium features you love and the business features your work demands. Connect to company networks easily and more securely and share files across the various PCs in your home. In addition, run many Windows XP productivity programs in Windows XP Mode and recover your data easily with automatic back-ups to your home or business network. Take a look at these highlighted features in Windows 7 Professional: Run many existing productivity and business programs designed for Windows XP?additional necessary software is available for download, free-of-charge from Microsoft Back up your files to an external hard drive, secondary hard drive, writable CD or DVD, or to a network location Find virtually anything on your PC?from documents to photos to e-mail Take advantage of the powerful diagnostics and troubleshooters built into Action Center to resolve many computer problems on your own Use HomeGroup to connect your PCs running Windows 7 to a single printer Interact with any compatible device connected to your computer?see device pictures and status and run common tasks from a single window