King Files

There are many ways you can get Windows 7. But perhaps the easiest and fastest way to get Windows 7 iso image file is to directly download from the official HTTP server. That is you can download the iso image file from digital river and amazon
Here is the list of Urls you can download different versions of Windows 7 (note: do not have Windows Enterprise, as it is exactly the same as Windows Ultimate but under different License Volume agreement, for
average consumers there are only 3 version of Windows 7 available that is Ultimate, Professional, and Home Premium)
Windows 7 Home Premium x86 ISO 32-bit
http://msft-dnl.digitalrivercontent.net/msvista/pub/X15-65732/X15-65732.iso
Windows 7 Home Premium x64 ISO 64-bit
http://msft-dnl.digitalrivercontent.net/msvista/pub/X15-65733/X15-65733.iso
http://msft-dnl.digitalrivercontent.net/msvista/pub/X15-65804/X15-65804.iso
Windows 7 Professional x64 ISO 64-bit
http://msft-dnl.digitalrivercontent.net/msvista/pub/X15-65805/X15-65805.iso
Windows 7 Ultimate x86 ISO 32-bit
http://174.129.85.117/data/Windows7Ultimate32bit.iso

[UPDATE August 8th 2011] After nearly a year of the release of Windows 7 Service Pack 1, you can now download new Windows 7 ISO images that comes with the Service Pack 1 (SP1) pre-installed. That means you don’t need to download all the windows updates for a fresh new install, this will save you many hours after your fresh install of Windows 7. It is strongly recommended downloading the new ISOs that come with Service Pack 1 pre-installed. As usual, the links below are all from official Microsoft retailer website.
Windows 7 Home Premium Service Pack 1 x86 ISO 32-bit
http://msft.digitalrivercontent.net/win/X17-58996.iso
Windows 7 Home Premium Service Pack 1 x64 ISO 64-bit
http://msft.digitalrivercontent.net/win/X17-58997.iso
Windows 7 Professional Service Pack 1 x86 ISO 32-bit
http://msft.digitalrivercontent.net/win/X17-59183.iso
Windows 7 Professional Service Pack 1 x64 ISO 64-bit
http://msft.digitalrivercontent.net/win/X17-59186.iso
Windows 7 Ultimate Service Pack 1 x86 ISO 32-bit
http://msft.digitalrivercontent.net/win/X17-59463.iso
Windows 7 Ultimate Service Pack 1 x64 ISO 64-bit
http://msft.digitalrivercontent.net/win/X17-59465.iso