In the meantime one can use the Dell OS Recovery Tool to Download a Windows 7 Pro OEM .iso:
http://www.dell.com/support/home/uk/en/ukbsdt1/drivers/osiso/recoverytool/
This Tool can be ran on a non-Dell system provided that a Dell Service Tag is input. There seems to be no limitations on how many times a Service Tag is input:
5KR9DC2 - Windows 7 Pro 64 Bit
7GXLCS1 - Windows 7 Pro 32 Bit
This is a multi-lingual .iso so can be used for all languages and with some minor workarounds can be used for all OEM and Retail Licenses.
The Windows 7 Pro Edition has been updated until January 2016 and unlike Microsoft's 2010 .iso contains IE11, USB 3 drivers and Storage Controller drivers for up to 6th generation Intel Skylake Systems but only for the Pro Edition making it far superior to Microsoft's 2010 Installation Media.
The .iso Installation .iso checksums are here:
G13K9_PW4KGA00_W7SP1PRO64_ROW(DL).iso (7,404,138 KB):
MD5: d363f535afae79139fe8632702613ffb
SHA1: f52615d64ebe9b7c7aeb754746356bc3a052c415
SHA256: 2bfa2ebbee84804c8e643bf829644e6c5ef373e63bdeae3a6ac927d371f4c0d0
MT5KY_N6N9GA00_W7SP1PRO32_ROW(DL).iso (5,715,252 KB):
MD5: 488ae6c2a7e587e87c12101fde083458
SHA1: c36a77d3dbbe1d248a04a496e2f88ab268ff6ce9
SHA256: b33b6b5a5c98ad33729741b2f2fe4c74bc7a8677f7c13d0c4966fd9ae5ed2c14
Full Details of the Dell Skylake .iso and the necessary workarounds required for all OEM and Retail licenses are available here:
http://dellwindowsreinstallationguide.com/download-dell-skylake-windows-7/