16 GB available disk space (32-bit) / 20 GB (64-bit).1 gigabyte (GB) RAM (32-bit) / 2 GB RAM (64-bit).1 gigahertz (GHz) or faster 32-bit (x86) or 64-bit (圆4) processor.Windows® 7 System RequirementsMicrosoft recommends the following minimum system requirements to make sure you get all the benefits of Windows® 7. Location Aware Printing, which helps you set different default printers for your home and work networks.Windows® XP Mode* for running older productivity applications that require Windows® XP.Advanced Backup and Restore to help you back up your entire system to a home or business network, and Encrypted File System to help protect your data.Domain Join, which gives you the ability to join a managed Windows® Server network.In addition to the features in Windows® 7 Home Premium, you’ll also get the following: You’ll also be able to connect to company networks easily and more securely. You’ll be able to run many Windows® XP productivity programs natively in Windows® 7 or by using Windows® XP Mode*, and recover your data easily with automatic backups to your home or business network. Windows® 7 Professional has all the features you need for business, along with all the great media and entertainment features of Windows® 7 Home Premium.