Windows

Windows is a family of operating systems released by Microsoft. For more information, read Wikipedia

DOS/9x-based

 * Windows 1.x
 * Windows 2.x
 * Windows 3.0
 * Windows 3.1
 * Windows 95
 * Windows 98
 * Windows ME

NT-based

 * Windows NT 3.1
 * Windows NT 3.5
 * Windows NT 3.51
 * Windows NT 4.0
 * Windows 2000
 * Windows XP
 * Windows Vista
 * Windows 7
 * Windows 8
 * Windows 8.1
 * Windows 10