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Windows 7 Professional Retail-Box
By Microsoft

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, you can run many Windows XP productivity programs in Windows XP Mode ... 

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Windows 7 Pro SP1 64-Bit English 1-pack DSP DVD
By Microsoft

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. ... 

Top Seller

Windows 7 Ultimate 64-Bit English 1-pack DSP DVD
By Microsoft

Windows 7 Ultimate gives you everything Home Premium and Professional offers - plus added security features and the flexibility to work in multiple languages. Create a home network and share all of your favorite photos, videos and music. You can even watch TV programs for free, whenever and wherever you want. ...