Totally disheartened :( I have tried the workaround on two pcs both running genuine W8, and I get a failed download reporting too many error blocks, every time...
Both pcs are kept perfectly clean of any rubbish and work perfectly well.
This is my worst experience to date with a major Windows upgrade.
Please please please Microsoft make the ISO available same as it is to MSDN subscribers. Trust your customers; listen to your customers.
What is the point of a free update if countless of us are not even able to download it?