Windows 8 Pro Upgrade but no previous version of Windows installed

Possible Duplicate:
If I’m performing a an upgrade to Windows 8, do I have to have the previous version installed, or is just having the key enough?

I have a license for Windows 7 but don't have it currently installed anywhere. I bought the Windows 8 Pro Upgrade. Do I need to install Windows 7 and then upgrade or is there a easier way to install Windows 8 Pro Upgrade?

When I try to activate I am getting an error Code: 0xC004F061. Description: The software licensing service determined that the specified product key can only be used for upgrading, not for clean installations.

Vineet Bhatia

Posted 2012-10-26T21:22:03.897

Reputation: 181

You must have a license copy of Windows to upgrade to Windows 8. If you don't then purchase the System Builder license. The error is clear, you can't use it for a clean installation, you are out of luck. – Ramhound – 2012-10-26T21:55:20.970

Answers

As already mentioned here, you'll need a previous version of Windows installed, it could be Windows 8 Release Preview too.

Alternatively, you could have purchased the System Builder version of Windows 8.

page4096

Posted 2012-10-26T21:22:03.897

Reputation: 580

I wonder if the old double install trick will work like it did for W7?...http://www.winsupersite.com/blog/supersite-blog-39/news2/clean-install-windows-7-with-upgrade-media-the-answer-138936

– Moab – 2012-10-26T22:49:10.460

@Moab Seems to have worked for me. – Chris W. Rea – 2012-10-27T01:51:30.573

@ChrisW.Rea thanks for the confirmation, I posted the wrong link above, which method did you use? – Moab – 2012-10-27T02:45:11.273

Here is the double install method, works for Vista and W7...http://www.winsupersite.com/article/windows-vista2/how-to-clean-install-windows-vista-with-upgrade-media-128230

– Moab – 2012-10-27T02:48:43.977

@Moab The old double install trick worked for me. – Chris W. Rea – 2012-10-27T12:26:42.710

In Windows 8 I had to open the Command Window with Admin privilege by doing an app search for cmd and hitting ctrl+shift+enter – Vineet Bhatia – 2012-10-30T22:56:26.353

Do you have ANY Windows (XP or later) installation on any of your computers? You could try to clone the partition with this installation to the hard drive you want to have Windows 8 on and then boot the upgrade DVD (no point in booting the cloned system, it would probably want to install a lot of drivers, etc.)

Alternatively, if you have a backup of one of your Windows installations, you could restore this backup on the target machine before upgrading.

DzinX

Posted 2012-10-26T21:22:03.897

Reputation: 4 010

There is an old method originally used for Vista and also works for W7 and reportedly works for W8, it called the double install method. Basics are you install W8 using the advanced selection (which allows you to delete any partitons on the hard drive and clean install), once at the desktop launch the W8 installer from inside windows 8, and install a second time, this time it will active properly and you will have a clean install.

Moab

Posted 2012-10-26T21:22:03.897

Reputation: 54 203

Any sources for this successfully working? – James McMahon – 2012-11-02T18:11:10.600

More information about the error (0xC004F061) here.

According to reports, the same trick/workaround that enabled users to clean install using Windows 7 Upgrade media also works with Windows 8:

Run Regedit (Win+Q, type regedit)
Navigate to HKEY_LOCAL_MACHINE/Software/Microsoft/Windows/CurrentVersion/Setup/OOBE
Change MediaBootInstall from 1 to 0
Go back to the Start Screen and type cmd there
Right-click Command Prompt and run it as administrator
Type slmgr /rearm
Reboot
Run the activation utility, enter the product key, cross your fingers and attempt to activate Windows

Note 1: According to other reports, this method (using the cheap $15/$40 Upgrade key to clean install) does not work with the USB/DVD (ISO) media the Upgrade Assistant allows you to create. Instead you apparently need either the Windows 8 (32/64-bit) DVD version (that contains both Core/Pro) available on MSDN, or possibly the System Builder DVD.

Note 2: If this doesn't work, the double install trick should (as mentioned by Moab).

^Source

Karan

Posted 2012-10-26T21:22:03.897

Reputation: 51 857

Thanks, this worked very well for me. What a pain it is to use Windows legally... – Marius – 2013-02-10T19:09:33.447

There is a custom install for windows 8 where you can use is as clean installation for Windows 8.

Anvesh Vejandla

Posted 2012-10-26T21:22:03.897

Reputation: 177

I did that but when I try to activate I am getting an error code. – Vineet Bhatia – 2012-10-26T21:30:02.170

@Vineet Bhatia: Can you please paste the error here. – Anvesh Vejandla – 2012-10-26T21:31:37.343

added to the question – Vineet Bhatia – 2012-10-26T21:34:10.620

@Vineet Bhatia: The serial key isn't right one for clean installation. Sorry to say, contact Microsoft. – Anvesh Vejandla – 2012-10-26T22:40:54.720