Hm, I just tried to download the HP x64 ISO from the link I posted and got the same problem as you. Send Digital River an email and see what they say.
wow thank God, I thought I was going insane. I doubt an email will do anything, last time they replied after 7 days saying they can't help.
So If I download this iso from win7 pro x64
I can burn it to a DVD and use my key I have got from MSDNAA (for win7 x64 pro) to clean install(on blank HDD) and everything is hunky dory?
Would a retail disk for HP allow me to install Pro?
ps3ud0
The thing is MSDNAA just gives me some kind of exe file rather than an iso. I need to clean install as I will be moving my hard drive to the new PC in a few days. Id rather not have to re-install XP and then have to install windows 7.
I've FINALLY sorted this now thanks to this helpful, and very easy guide:
http://www.sevenforums.com/tutorials/30470-make-bootable-iso-student-d-l.html?filter[2]=General%20Tips
Windows 7 at last
Thats pretty much what I used a few weeks ago and works fine and others as above.
Its not clear what is causing a problem for some people.
I figure the downloaded files/iso will only work with the key sent by DR, I suspect you'll get activation problems, let us know how you get on.