Sony MSWUL Windows 7 Ultimate is the most versatile and powerful edition of Windows 7. It combines remarkable ease-of-use with the entertainment features of Home Premium and the business features of Professional, including using many Windows XP productivity programs in Windows XP Mode. For added security, you can encrypt your data with BitLocker and BitLocker-To-Go. And for extra flexibility, you can work in any of 35 languages at any time. Get it all with Windows 7 Ultimate.This version of Windows is designed as an upgrade for Windows Vista.A quick (and fun!) new way to resize and compare windows on your desktop.Better thumbnail previews, easier-to-see icons, and more ways to customize. Designed to sleep and resume quicker, be less memory hungry, and spot USB devices faster. Pair Windows... Less

The Microsoft Windows XP Home Additional License Pack is for Windows user who have already acquired Windows XP Home Edition from a retailer, and who wish to acquire an additional license to enable intallation of Windows XP Home Edition on another computer in the home.

Microsoft Windows XP Pro - The Professional Choice Please note: This product can update to SP3 after installation for free. Although replaced by Microsoft Windows Vista , Microsoft Windows XP Pro remains the most popular and widely used operating system in the world for business computer applications. While Microsoft Windows Vista does offer some cosmetic improvements and a few new features, nothing can beat Microsoft Windows XP when is comes to performance, stability and, in the case of older computers, speed. While the Microsoft Windows Home Edition is meant for personal use, Microsoft Windows XP Professional is designed for business use and has expanded capabilities and supports a greater number of devices and technologies. Microsoft Windows XP Pro takes the best features of the... Less

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Windows XP Home with SP1

Windows XP Home with SP3 3-Pack DSP

Microsoft Windows XP Professional is the next-generation operating system for businesses of all sizes, and for individuals who demand the most from their computing experience. Windows XP delivers all the features you need for the digital age - including tools for creating and managing digital photos, music, and video, or for building a small network - all in one box. Windows XP is built on Windows 2000 to give it a solid, reliable foundation. It then builds on this foundation with new multimedia capabilities, Internet Explorer 6, new Internet security features, and much more. Plus, an improved, task-based visual design puts the features you use most often in the foreground. Service Pack 3 (SP3) includes all previously released updates for the operating system including Windows Firewall,... Less

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With Windows 7 Professional, fewer walls stand between you and your success-run many Windows XP productivity programs in Windows XP Mode and recover data easily with automatic backups. Connect to company networks effortlessly and more securely with Domain Join-with all the exciting entertainment features of Windows Home Premium, it's a great choice for home and for business

Windows XP in a Nutshell, Second Edition documents everything there is to know about the world's most widely used operating system. Updated to include information on Service Pack 2 (SP2), this compact guide is the ultimate resource for IT professionals and Windows XP power users everywhere. Written in O'Reilly's time-tested in a Nutshell format, Windows XP in a Nutshell, Second Edition cuts through the hype and delivers practical details in a no-nonsense manner. At the heart of the book is an invaluable 200-plus-page section titled Windows XP Application and Tools. In it, readers will find:A list of available commands and utilities, including Start Menu accessories, command prompt tools, and hidden system administration utilities A Task and Setting Index for quick access to hundreds... Less