Microsoft Windows 7 is the latest public release version of Microsoft Windows, a series of operating systems produced by Microsoft for use on personal computers, including home and business desktops, laptops, netbooks, tablet PCs, and media center PCs. Windows 7 is the newest and most beautiful Microsoft OS. But Windows XP and Windows Vista are enough for us. Is it really necessary to update our OS to Windows 7? There are dozens of reasons, big and small, to get Windows 7. I designed it to simplify your everyday tasks, work the way you want, and make new things possible. To see what I mean, you can start with the top 10 reasons.

1. Get quicker access to all of your stuff: use Pin and Jump Lists to keep the programs and files you use the most right at your fingertips.

2. Manage open windows more easily: resize and arrange windows simply by dragging their borders to the edge of your screen.

3. Quickly find what you're looking for: use Windows Search to find a specific file, program, or e-mail in a few seconds.

4. Share files and printers among multiple PCs: from one Windows 7-based PC to another, you can share files, music, photos, and even printers across your home network.

5. Stay entertained effortlessly: with Windows Media Center you get one place to enjoy your photos and music, watch and record live TV, and watch free Internet TV.

6. Easily create and share movies: create great looking movies and slideshows and share them on YouTube in minutes.

7. Connect to networks easily: view and connect to any available wireless network in as few as three clicks.

8. Do more and wait less: improvements that can accelerate sleep and resume and make your PC more responsive help you get more done.

9. Don't leave programs behind: run many Windows XP productivity programs in Windows XP Mode.

10. Offers your PC better protection: help keep your PC, your information, and your family safe.

Compare with Windows XP and Windows Vista, Windows 7 is more powerful. Built upon the security foundations of Windows Vista, Windows 7 introduces the right security enhancements to give users the confidence that Microsoft is helping keep them protected. Businesses will benefit from enhancements that help protect company sensitive information, that provide stronger protections against malware and that help secure anywhere access to corporate resources and data. In this session we will discuss the core security features of Windows 7 and explore their usage scenarios. But such as Administrator password,Windows 7 still using the same encrypt arithmetic as the previous versions of windows. That means that if you need to reset Windows 7 password, you can just use the similar methods like Windows Vista or Windows XP or use some Windows 7 password recovery tool which is used for Windows 7 password reset.