Windows 7.1

Windows 7.1 is a personal computer operating system developed by Microsoft as part of the Windows X.XX family. It is based on Windows 7. Its purpose was to modernize Windows 7.

History
In 2010 Microsoft started working on Windows 8. They wanted to release a major update for Windows 7 that will flatten all the UI elements that have the Windows Aero Update.

In 2011 Microsoft transitioned the Windows Aero Update to Windows 7.1. They added a few features.