I seem to be completely unable to install the Windows 7 SDK onto my machine, and the only solution I\'ve found on the web is to make a swathe of registry changes. I\'ve done
All of these (and other) solutions have failed completely for me so I figured out another.
You need the offline installation package (mine was x64), and you need to manually install only the samples. Opening the ISO-file with, for example, 7-Zip from location Setup\WinSDKSamples_amd64 and running WinSDKSamples_amd64.msi did this for me.
Then you just use the normal setup file to REPAIR the installation and choose whatever components you wish.