2011年9月14日，微软正式发布Windows8开发者预览版！本次Windows8开发者预览版包括三个版本，其中一个是保护开发者工具的64位系统版本，其余两个就是32位和64位纯Windows8系统版本。

　　由于此次发布的Windows8开发者预览版并非稳定版，只供展示使用。由于此Win8版本非常不稳定，不建议在工作环境安装这个版本。

　　同时，建议同学下载32位的Win8。

　　Windows8开发者预览版安装教程已经发布，请点击《Windows8安装全程图赏 兼Win8安装教程！》。

点击图片进入微软Build 2011大会专题

　　以下是摘自官网的原文。已经下载了Windows8的网友记得核对Sha 1 hash有没有错。

　　The new Windows Dev Center is launching soon

　　The Windows Developer Preview is available to download now! Come back to the Windows Dev Center soon to get the Windows Developer Preview guide, samples, forums, docs and the resources to build on Windows.

　　Download the Windows Developer Preview nowThe Windows Developer Preview is a pre-beta version of Windows 8 for developers. These downloads include prerelease software that may change without notice. The software is provided as is, and you bear the risk of using it. It may not be stable, operate correctly or work the way the final version of the software will. It should not be used in a production environment. The features and functionality in the prerelease software may not appear in the final version. Some product features and functionality may require advanced or additional hardware, or installation of other software.

点击图片进入Windows8官方下载网站

　　Windows Developer Preview with developer tools English, 64-bit (x64)DOWNLOAD (4.8 GB)

　　Sha 1 hash - 6FE9352FB59F6D0789AF35D1001BD4E4E81E42AF

　　All of the following come on a disk image file (.iso). See below for installation instructions.

　　64-bit Windows Developer Preview

　　Windows SDK for Metro style apps

　　Microsoft Visual Studio 11 Express for Windows Developer Preview

　　Microsoft Expression Blend 5 Developer Preview

　　28 Metro style apps including the BUILD Conference app

　　Windows Developer Preview English, 64-bit (x64)DOWNLOAD (3.6 GB)

　　Sha 1 hash – 79DBF235FD49F5C1C8F8C04E24BDE6E1D04DA1E9

　　Includes a disk image file (.iso) to install the Windows Developer Preview and Metro style apps on a 64-bit PC.

　　Windows Developer Preview English, 32-bit (x86)DOWNLOAD (2.8 GB)

　　Sha 1 hash - 4E0698BBABE01ED27582C9FC16AD21C4422913CC

　　Includes a disk image file (.iso) to install the Windows Developer Preview and Metro style apps on a 32-bit PC.

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更多关于Windows 8资讯：

Windows 8全国独家首测！带你走进新世界
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Windows 8操作系统发布 亮点逐一细数！
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