Simplify the following text for a Grade 10 native English-speaking person.
Original: Speaking about Windows 7 on October 16 , 2008 , Microsoft CEO Steve Ballmer confirmed compatibility between Vista and Windows 7 , indicating that Windows 7 would be a refined version of Windows Vista .
Simplified: Windows 7 is the newest version of Microsoft Windows , which is an operating system for computers . Microsoft says Windows 7 is faster , more reliable and more compatible , and that it is a refinement of the previous version named Windows Vista .