Windows 7 RC containing the authorization information indicates that 64-bit Windows 7 to support a maximum 192GB of memory.

With the launch date draws near, some of the Windows 7 information is also gradually surfaced. It is has been testing the Windows 7 RC said, for 32-bit Windows 7, all versions support 4GB of memory. As for the 64-bit systems, the primary version and the version of the family support 8GB memory support Home Premium 16GB, and the Professional Edition, Enterprise and Ultimate support maximum 192GB.

Windows 7 between the low-end and high-end versions of a number of other different, such as Home Premium, Professional, Enterprise and Ultimate support AAC/H.264/MPEG-2 decoding, while the primary version and the version does not support the family; Junior Edition, and Home Basic do not support the Windows Media Player Remote Media Experience (RME), does not support the Windows XP mode.

Microsoft confirmed last Friday, Windows 7 RC will be released April 30, May 5 open to the public for download. At the same time, Windows 7 RC has been leaked to the Internet in advance.

Microsoft announced in February this year, Windows 7 will be divided into 6 major version of Windows 7 are the primary version (Starter), Windows 7 Home Basic (Home Basic), Windows 7 Home Premium (Home Premium), Windows 7 Professional Edition ( Professional), Windows 7 Enterprise Edition (Enterprise) and Windows 7 Ultimate (Ultimate).