Do you know for sure that the hash is correct for the source, as there is a possibility that it may have been updated.
Check the source hash and the file size reported, if what is reported as the file size doesn't match neither will the hash.
Presumably the downloaded file would have a build number, etc. that can be compared against that given on the source location. It may even be digitally signed.
I gave up after 4 tries. Perhaps its an error on their side.
The direct download link is http://iso.esd.microsoft.com/WCPDL/BD1B8A49393E30CC9C4E5C88457D73E964F1F3B18/Windows8-ConsumerPreview-32bit-English.iso
And its hashkey is Sha 1 hash — E91ED665B01A46F4344C36D9D88C8BF78E9A1B39
But its always different when I download it. I burned it into a dvd and tried but it said that some files are missing.
Since you apparently are having problems downloading the ISO file, why not go this route:
http://windows.microsoft.com/en-US/windows-8/downloadIt's an installer from MS that checks your computer for any comparability problems and if there are any let's you fix them
and then installs what needs to be installed according to your choices.
I've done 4 systems this way and never had a problem.
