To install create a bootable USB stick or DVD with the ISO file and restart the computer. Incidentally RussellB99 I have not only been through the steps as you try I started from a win download And Im done doing a clean install of Win. 1. Thanks but its pretty useless for those who dont have an MSDN subscription. In case your past Windows was 7 and also youve got product key of Windows 7 then update to Windows. 1 after automaticizing your Windows. 1 will trigger. Sufficient data storage available on a computer USB or external drive for the download.To install create a bootable USB stick or DVD with the.iso file and restart the computer.By the way RussellB99 I have not only been through the steps that you are attempting I started from a Win download and I ended up successfully doing a clean install of Win.1.Thanks but that is pretty pointless for those who do not have a MSDN subscription.In case your Past Windows was 7 and also youve got product key of Windows 7 then update to Windows.1 after automatically your Windows.1 will trigger.Sufficient data storage available on a computer USB or external drive for the download.