Windows 7 is the latest Windows Operating System
There are two types of Windows PC operating systems--Windows and Windows Server. The latest version of Windows Server now is Windows Server 2008 R2. The latest version of Windows (non-server) now is Windows 7.
Microsoft Windows 7
I guess windows 7 is the latest version of operating system in MICROSOFT.
Usually referring to the latest version of Microsoft Windows, sometimes to the latest version of OS X.
YES
If you are asking whether there is a newer version of Windows Movie Maker for XP operating systems, the latest version is v2.1.Newer version of Windows Movie Maker do exist (such as v2.6 and Windows Live Movie Maker) but they are only for Vista operating systems.
Windows 7
If by Microsoft you mean the Windows operating system: The latest general OS is Vista (6.0.6002) The latest server OS is Windows Server 2008 (6.0.6002) The latest (release candidate) for Vista's successor is Windows 7 (6.1.7100)
The last version of Windows under the "NT" brand was Windows NT 4. The latest version to be built upon Windows NT is Windows Vista (Windows 7 has not yet been releasedofficially).
Windows Vista is an operating system. It is the latest in Microsofts' series of windows operating systems.
Windows 8.1 Update and Windows RT 8.1 Update (also known as KB 2919355)
Windows 8