With the release of Windows 7 SP1, Microsoft has also updated the Windows 7 DVD media ISO image distributed by Digital River for online order fulfillment. Digital River is Microsoft’s partner for fulfillment on online distribution for downloadable Microsoft products.
The Windows 7 ISO images hosted on Digital River is genuine and official version, and the downloads from the server is 
legal. It’s after all one of the official channel where end-users who purchase a license (product key) for Windows 7 get the setup installation files.
Anyway, without a genuine and legally purchased product key, you can’t get Windows 7 activated, and Windows 7 will only run as evaluation copy for up to 30 days.
The latest version of Windows 7 DVD image available is of media refresh version, which commonly known as Windows 7 SP1-U (Media Refresh). Microsoft released the media refresh version of Windows 7 DVD media to fix a rare bug related to invalid computer name when small set of computer names returned error when used to install Windows 7. Otherwise, the Windows 7 with SP1 and Windows 7 with SP1-U (Media Refresh) is completely the same.
These are now available for those who currently have Microsoft Windows 7 with Genuine Activation Keys. These are the legitimate downloads, full ISO image to burn to a good quality blank DVD using any good image burning program such as ImgBurn or the like.
These ISO image download have Service Pack 1 integrated into the installation setup, so therefore there is no need to separately install SP1 after the initial install of Windows 7.
Windows 7 SP1 ISO Download Links Including English and Foreign Language Versions:
http://msft.digitalrivercontent.net/win/X17-24208.iso 2147483647 X17-24208.iso Windows 7 Home Premium x86 English
http://msft.digitalrivercontent.net/win/X17-24209.iso 2147483647 X17-24209.iso Windows 7 Home Premium x64 English
http://msft.digitalrivercontent.net/win/X17-24268.iso 2147483647 X17-24268.iso Windows 7 Professional x86 Chinese
http://msft.digitalrivercontent.net/win/X17-24269.iso 2147483647 X17-24269.iso Windows 7 Professional x64 Chinese
http://msft.digitalrivercontent.net/win/X17-24276.iso 2147483647 X17-24276.iso Windows 7 Professional x86 Danish
http://msft.digitalrivercontent.net/win/X17-24277.iso 2147483647 X17-24277.iso Windows 7 Professional x64 Danish
http://msft.digitalrivercontent.net/win/X17-24278.iso 2147483647 X17-24278.iso Windows 7 Professional x86 Dutch
http://msft.digitalrivercontent.net/win/X17-24279.iso 2147483647 X17-24279.iso Windows 7 Professional x64 Dutch
http://msft.digitalrivercontent.net/win/X17-24280.iso 2147483647 X17-24280.iso Windows 7 Professional x86 English
http://msft.digitalrivercontent.net/win/X17-24281.iso 2147483647 X17-24281.iso Windows 7 Professional x64 English
http://msft.digitalrivercontent.net/win/X17-24284.iso 2147483647 X17-24284.iso Windows 7 Professional x86 Finnish
http://msft.digitalrivercontent.net/win/X17-24285.iso 2147483647 X17-24285.iso Windows 7 Professional x64 Finnish
http://msft.digitalrivercontent.net/win/X17-24286.iso 2147483647 X17-24286.iso Windows 7 Professional x86 French
http://msft.digitalrivercontent.net/win/X17-24287.iso 2147483647 X17-24287.iso Windows 7 Professional x64 French
http://msft.digitalrivercontent.net/win/X17-24288.iso 2147483647 X17-24288.iso Windows 7 Professional x86 German
http://msft.digitalrivercontent.net/win/X17-24289.iso 2147483647 X17-24289.iso Windows 7 Professional x64 German
http://msft.digitalrivercontent.net/win/X17-24296.iso 2147483647 X17-24296.iso Windows 7 Professional x86 Italian
http://msft.digitalrivercontent.net/win/X17-24297.iso 2147483647 X17-24297.iso Windows 7 Professional x64 Italian
http://msft.digitalrivercontent.net/win/X17-24302.iso 2147483647 X17-24302.iso Windows 7 Professional x86 Norwegian
http://msft.digitalrivercontent.net/win/X17-24303.iso 2147483647 X17-24303.iso Windows 7 Professional x64 Norwegian
http://msft.digitalrivercontent.net/win/X17-24306.iso 2147483647 X17-24306.iso Windows 7 Professional x86 Portuguese
http://msft.digitalrivercontent.net/win/X17-24307.iso 2147483647 X17-24307.iso Windows 7 Professional x64 Portuguese
http://msft.digitalrivercontent.net/win/X17-24318.iso 2147483647 X17-24318.iso Windows 7 Professional x86 Spanish
http://msft.digitalrivercontent.net/win/X17-24319.iso 2147483647 X17-24319.iso Windows 7 Professional x64 Spanish
http://msft.digitalrivercontent.net/win/X17-24320.iso 2147483647 X17-24320.iso Windows 7 Professional x86 Swedish
http://msft.digitalrivercontent.net/win/X17-24321.iso 2147483647 X17-24321.iso Windows 7 Professional x64 Swedish
http://msft.digitalrivercontent.net/win/X17-24328.iso 2147483647 X17-24328.iso Windows 7 Professional K x86 Korean
http://msft.digitalrivercontent.net/win/X17-24329.iso 2147483647 X17-24329.iso Windows 7 Professional K x64 Korean
http://msft.digitalrivercontent.net/win/X17-24394.iso 2147483647 X17-24394.iso Windows 7 Ultimate x86 English
http://msft.digitalrivercontent.net/win/X17-24395.iso 2147483647 X17-24395.iso Windows 7 Ultimate x64 English
These are very high speed downloads which should take anywhere from 30 minutes to about 50 minutes, if you have a high-speed broadband connection.
My download took approximately 18 minutes from start to finish. Both IE9 and Firefox have their own download managers you may use to accomplish the download.
Thеѕе аrе NOT illegal – Thеѕе аrе јυѕt thе download links fοr Windows 7 SP1 ISO whісh іѕ a retail wrap thаt offers a 30-day trial period. Yου need tο activate уουr Windows afterwards wіth a genuine license activation key tο continue using іt. Downloading thеѕе files frοm Digital River іѕ absolutely legal аnԁ completely free οf charge.
