Windows 10 Microsoft Windows 10 combines the best elements of the Windows you already know, like the Start menu, with new features like space to pin your favorite apps and easy navigation so you'll feel right at home. Getting set up is faster and easier so you can get right to work or exploring the Windows App Store games or a new version of Office. InstantGo quickly boots up or resumes Windows while enhancements help balance memory and processor resources for maximum efficiency and Battery Saver automatically conserves power. Windows 10 also offers more built-in security features improving protection against viruses, phishing, and malware.