Windows 8 Consumer Preview Build 8250 x86/x64 – ویندوز ۸ نسخه ی آزمایشی جدید

Windows 8 Consumer Preview Setup will check to see if your PC can run Windows 8 Consumer Preview and select the right download. Setup also features a compatibility report and upgrade assistance. Built-in tools for creating an ISO or bootable flash drive are available for some previous versions of Windows (excluding Windows XP and earlier). You can find system requirements and additional information in the FAQ and in the links on this page.

Note before you download: Windows 8 Consumer Preview is prerelease software that may be substantially modified before it’s commercially released. Microsoft makes no warranties, express or implied, with respect to the information provided here. Some product features and functionality may require additional hardware or software. If you decide to go back to your previous operating system, you’ll need to reinstall it from the recovery or installation media that came with your PC.

This exe will obtain a product key to run Windows 8 on your system.
The above is the official description from Microsoft. Our review will follow.
Verdict:
This official tool will run on your current system and determine whether it is suitable for a Windows 8 installation

Windows 8 is the codename for an upcoming version of Microsoft Windows, a series of operating systems produced by Microsoft for use on personal computers, including home and business desktops, laptops, netbooks, tablet PCs, and media center PCs. The Start menu is replaced by the new “Start screen”, which includes live application tiles. The user can return to the regular desktop by choosing a “Desktop” application. Examples of applications on the Start screen include a weather application, Windows Store, Investments, RSS news feeds, user’s Personal Page, and user’s Windows Live Account. The new interface is primarily designed for 16:9 screen resolution, with 1366×۷۶۸ and larger screens able to display two Windows 8 applications using “Snap”.

۱۰۲۴×۷۶۸ screens can display one Windows 8 application in full-screen, and 1024×۶۰۰ screens can only use the traditional Windows Desktop. It has been confirmed by Microsoft that PCs with mice and keyboards can also use Windows 8. Microsoft also announced that Windows 8 will use the processor and the physical memory more efficiently, to make Windows run more smoothly. Mike Delman, Microsoft’s vice president of global marketing, hinted in an interview that Windows 8 would have Xbox Live integration, similar to Windows Phone 7.