Windows 8.1 leaks from two weeks ago same as MSDN and TechNet versions

When we reported two weeks ago that Russian leaker WZOR had leaked the RTM versions of Windows 8.1 x86 and x64 online, he claimed that they were the untouched RTM releases; today, we can confirm that this was in fact true.

Shortly after, Windows Server 2012 R2, Essentials, Enterprise, Hyper-V Server and Foundation Storage, as well as the Russian versions and language packs were leaked online too; although not all are confirmed yet, it's likely that these too were the genuine RTM versions.

The news comes courtesy of MDL who compared the hashes to the leaked versions:

Windows 8.1 x86 and x64 RTM (TechNet):
Languages: English, SHA1: 802CFCD3A411D99C097EA7E747F0B6697F9BDAC4
Languages: English, SHA1: BC2F7FF5C91C9F0F8676E39E703085C65072139B

Windows Server 2012 R2  x64 RTM  (TechNet):

Languages: English, SHA1: B6F063436056510357CB19CB77DB781ED9C11DF3 and so on, can be found in this thread along with other comparisons.

Yesterday, WZOR leaked Windows 8.1 RT online as well, which has not been released early. It's probably safe to say that this 2.43 GB image - which includes the updated Office 2013 RT with Outlook - is also genuine.

For those without access to MSDN or TechNet, Windows 8.1 in all flavors will be made available as an update via the Windows Store from October 17th in the U.S., and a day later for everyone else as a free download.

Via: My Digital Life Forums

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29 Comments

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I thought It was against the site policy to give external links to leak?... MDL forum is currently down, hope it's not M$ft

Installed the leaked 8.1 RTM on my laptop last week with no problems. Went to install, just now, on another desktop and it's saying the s/n are no good. Anyone else seen this?

Is it worth installing the leaked RTMs? I wonder if they are going to change anything significant where we would have to redownload the ISO on the official launch.

It will just be a large Windows Update rollout. RTM is still RTM. If you run it in production, you'll just get an update when GA day hits on October 18. No new ISOs.

But I can't UPGRADE - I only get the option to keep my files or completely wipe everything - why is there no third option to actually upgrade and keep my installs? Can anyone assist?

I'm fairly sure on their website where you grabbed Windows 8.1 Preview it mentioned that you could not upgrade to 8.1 Final without losing applications. If you failed to read that then it is your own fault.

They did this because it is one less thing to have to make sure works flawlessly. All they had to do was make sure the upgrade from 8 to 8.1 worked instead of 8 to 8.1 AND 8.1 Preview to 8.1 RTM.

The question is though: Should you attempt it? Usually it's always recommended to do a clean install when moving to a newer copy of Windows.

No
Win 8 Pro RTM (upgrade from Win7, but refreshed/reset a while ago), trying to upgrade using Win 8.1 Pro RTM ISO. Even removing cversion.ini hasn't worked.

I tried one of these recent builds and decided I was just done giving Windows 8 a chance.

I love the way it feels and looks, but I have WP for that; they should've revamped the old desktop interface COMPLETELY, not just slap a new flat non-Aero theme, cross their fingers and hope for the best.

Metro and Desktop interfaces feel like two completely different operating systems, and they should've been separated from the start; instead we got half of both in one giant pile of fertilizer!

I compared the ISO's from the leaked 2012 R2 Essentials release with the Technet Version yesterday, they were also identical.

Why would the builds be different? RTM is going to be the same they're just going to push out updates at GA to fix anything else they've found not do a new build. I believe they've said as much already. Most of the work is still probably being done on the apps and server side to support the services, not so much the OS itself.

Also, because someone could have easily snuck something into the OS installation that isn't supposed to be there, like a RAT (Not that I'm questioning WZOR leaks, at least not after the hash checks out).