Some of the key features of Windows 7 include:
* A new user interface called the Aero user interface. This interface features a transparent taskbar, taskbar previews, and a new Start menu.
* Improved performance. Windows 7 is faster than Windows Vista and boots up more quickly.
* New features for managing windows. Windows 7 introduces new features for managing windows, such as Snap, Aero Peek, and Shake.
* Improved support for multi-touch devices. Windows 7 supports multi-touch devices, such as tablets and touch-screen laptops.
* New security features. Windows 7 includes new security features, such as User Account Control (UAC) and Windows Defender.
Windows 7 was a successful operating system and was used by over 1 billion people around the world. It was succeeded by Windows 8 in 2012.