Microsoft have released a Windows 7 Enterprise Edition 90 Day Evaluation to download, Stephen Rose from the Windows Spring Board Series Blog says: This evaluation version is for IT Professionals who do not yet have access to Windows 7 RTM through one of the following means: Through a Software Assurance Volume License agreement Through MSDN and TechNet subscriptions Through Software Assurance agreements allowing the download of Windows 7 RTM via the Volume Licensing Download Center. If you do not have access to licenses through one of the above means, this release will provide a means to have the final released code for evaluation and testing. This evaluation release is specifically intended for IT professionals responsible for desktop administration; consumers will be able to purchase Windows 7 on October 22, 2009 A few things to be aware of before you download the Evaluation code. A limited number of licenses are available, so the download will only be available while supplies last. Following the 90 day evaluation period, IT Pros who wish to continue to use Windows 7 Enterprise will be required to purchase and perform a clean installation of Windows 7, including drivers and applications. Windows 7 Enterprise Edition 90-Day Trial is the final Released-to-Manufacturing (RTM) version of Windows 7 Enterprise Edition. This is the same software that is available to Volume Licensing (VL) through Software Assurance (SA) and is feature-complete. Windows 7 Enterprise 90-Day Trial is available in English, Spanish, French, German, and Japanese in both 32 and 64 bit versions. Activation of Windows 7 Enterprise 90-Day Trial is required within 10 days after installation, or the product will shut down every hour. Windows 7 Enterprise 90-Day Trial is valid for 90 days after installation. After expiration, your computer will shut down every hour. If you wish to continue to use Windows 7 Enterprise please note that you will be required to purchase and perform a clean installation of Windows 7, including drivers and applications. Please keep this in mind; Windows 7 Enterprise is not available through retail channels. Click here to get the Windows 7 Enterprise evaluation download.