Microsoft has since relented:
Download an updated copy of Windows 8.1 with Update 1 and use the instructions in the following article to reinstall it:
The new downloader allows for selection of:
⦁ Language
⦁ Windows 8.1 Version
⦁ Architecture
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Microsoft has made it known there will be no .ISO file for Windows 8.1 available to the general public.
"Consumers" here really means any copies of Windows 8 that weren't purchased through Microsoft's Volume Licensing programs. So a small business with 20 PCs to upgrade, for example, will have to do them one at a time via the Windows Store – so that's 20 separate 3.5GB downloads.
The Windows Store is the only way for consumers (non-enterprise, non-IT Pro) to download and install Windows 8.1. No ISOs will be made available, so each device needs to be updated individually via the Windows Store.
UPDATE:
Since I started this discussion, Microsoft has introduced a Media Creation Tool that makes it easy to download a .ISO file and create bootable media:
http://windows.microsoft.com/en-US/windows-8/create-reset-refresh-media
The new downloader allows for selection of:
⦁ Language
⦁ Windows 8.1 Version
⦁ Architecture
Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.
Microsoft has since relented:
Download an updated copy of Windows 8.1 with Update 1 and use the instructions in the following article to reinstall it:
The new downloader allows for selection of:
⦁ Language
⦁ Windows 8.1 Version
⦁ Architecture
On another note, well done Microsoft, I just got my hands on an .iso via a third-party website. I hope it does not contain viruses. - Moral of the story, I can get hold of an .iso if I want, the question is, does Microsoft want people to download from them so they know it's safe, do they care, it seems not.