G4W meaning in Computing ?

Games for Windows is a discontinued brand owned by Microsoft and introduced in 2006 to coincide with the release of the Windows Vista operating system. The brand itself represents a standardized technical certification program and online service for Windows games, bringing a measure of regulation to the PC game market in much the same way that console manufacturers regulate their platforms. The branding program was open to both first-party and third-party publishers.

Games for Windows was promoted through convention kiosks and through other forums as early as 2005. The promotional push culminated in a deal with Ziff Davis Media to rename the Computer Gaming World magazine to Games for Windows: The Official Magazine. The first GFW issue was published for November 2006. In 2008, Ziff Davis announced that the magazine would cease to be published, though online content would still be updated and maintained.

In 2013, Microsoft announced that Xbox PC Marketplace would cease operations, which would result in the discontinuation of the Games for Windows brand. In spite of this announcement, the company stated that content previously purchased could still be accessed via the Games for Windows – Live client software.