Download win 8.1 Trail version

Windows 8.1 Trail version
Windows 8.1 is an update of the Windows 8 operating system. First unveiled and released as a public beta in June 2013, 8.1 wasreleased to manufacturing on August 27, 2013, and hit general availability on October 17, 2013—almost a year since the original, retail release of 8. 8.1 is available as a free update for existing Windows 8 and Windows RT users via Windows Store, but unlike the service packs of previous versions of Windows, it is not distributed through Windows Update, and users who obtained 8 outside of retail copies or pre-loaded installations (i.e. volume licensing) must obtain 8.1 through new installation media from their respective subscription or enterprise channel.

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Feature:-

Releases
Release to manufacturing	August 27, 2013; 5 months ago [info]
General availability	October 17, 2013; 4 months ago [info]
Latest stable release	8.1 (v6.3.9600) (October 18, 2013; 4 months ago) [info]
Kernel type	Hybrid
Platform support	IA-32, x64, ARMv7
Preceded by	Windows 8 (2012)