Windows 8 and 8.1 Forums


**FIX** Install Windows 8 Pro UPGRADE to clean HDD

  1. #1


    Posts : 3
    Windows 8 Pro

    **FIX** Install Windows 8 Pro UPGRADE to clean HDD


    So I haven't tried it officially on a new HDD, but I did try it over a new Install of Release Preview and it worked great!

    Background: I completely wiped my HD and had no install disk, recovery, nothing. I had to go on my Windows 7 and download a legit copy of Windows Pro 8 Upgrade. I had it on a USB drive and no matter what I did, I kept on getting an Error right after hitting "Install" stating that the product key installed is invalid, something along those lines, etc...

    After all week and many lost nights, I finally found the solution. Granted I did do this install over a freshly installed Release Preview, but I am sure it will work on a new HD.

    Once you create the Bootable USB drive from the Windows 8 Upgrade, just add this file "ei.cfg" to the \Sources folder and you should be able to install without the key error.

    The file is in a .txt format so I could upload it, but just change the .txt to .cfg and it should be an actual file, not a text file.

    IMPORTANT: You will need a VALID KEY once it is installed to even log into the machine. Let me know if this works or not.
    Last edited by Brink; 29 Nov 2012 at 23:52. Reason: Removed file that violates EULA

      My System SpecsSystem Spec

  2. #2


    Posts : 22,212
    64-bit Windows 10


    Hello Metamorphic,

    No need to go through all that, and violating the EULA by tampering with a system file and activation like that.

    Instead, you could just as easily use the method below to legally do a clean install with a Windows 8 upgrade, and have it activated afterwards.

    Clean Install with Windows 8 Upgrade
      My System SpecsSystem Spec

  3. #3


    Posts : 3
    Windows 8 Pro


    Quote Originally Posted by Brink View Post
    Hello Metamorphic,

    No need to go through all that, and violating the EULA by tampering with a system file and activation like that.

    Instead, you could just as easily use the method below to legally do a clean install with a Windows 8 upgrade, and have it activated afterwards.

    Clean Install with Windows 8 Upgrade
    Thanks, and believe me, I would have LOVED it to be that easy but unfortunately I was getting an error message right after hitting the "Install" button, it WOULDN"T even ask me for a product key before installation. I WAS STUCK. and This was a fix, and I have seen many others have this same isse.

    EDIT: BTW I'll do whatever I have to to install a product I paid for. ( Not being rude :P )
      My System SpecsSystem Spec

  4. #4


    Posts : 22,212
    64-bit Windows 10


    Were you formatting the HDD, and using the same steps in that tutorial to do this all at boot?

    What were you installing it on? Was this a brand new Windows 8 OEM computer?
      My System SpecsSystem Spec

**FIX** Install Windows 8 Pro UPGRADE to clean HDD
Related Threads
How to Do a Clean Install with Windows 8 Upgrade This tutorial will show you how to do a clean install with a Windows 8 upgrade copy on an empty drive (HDD/SSD). Windows 8 System Requirements Windows 8 works great on the same hardware that powers Windows 7. Processor: 1 gigahertz...
Hey all, I bought an upgrade copy of Windows 8 back when it released, and I've been using the same installation since 2012. Windows have been giving me a lot of issues, so I'm planning on re-installing in a week or two. I want to format my hard drive and then install Windows, but I'm afraid if I do...
Sorry if if this was answered. This question is for a friend, but honestly I don't the exact answer myself. Windows vista, upgrade to 7, now upgraded to Windows 8 using Windows 8 upgrade DVD, keeping his software and files. Friend does not feel system is working as it should so wants to try...
Solved Windows 8 upgrade to clean install in Installation & Setup
Hi For the first time I have purchased an upgrade instead of the full version. It installed ok, but I am having one or two issues. For some reason, although in power options I have it set to 'shut down' on the power off, it shuts down then sometimes within a few minutes or in a few hours (during...
I have a preference to perform a clean installation, on my active partition; specifically, after deleting the original partitions, containing Windows 7 and the Reserve partition! This option is available, I believe, by selecting the Advance option, and then choosing the delete both of these...
I'm interested in eventually trying Windows 8, I'm currently using Windows 7 on all my PC's. With 7 I was able to clean install with the upgrade disc I bought when I was in school for $40. Looks like Microsoft is offering upgrades to 8 for the same deal through Jan 31 2013. I was reading some...
Hi, For your information, I bought my Asus laptop last year that came with Windows 7 Pro. I'm planning to upgrade to Windows 8 this coming October, however, it seems they require me to provide the windows product key. I download a software called: "Key Finder" to find my windows key, and...
Eight Forums Android App Eight Forums IOS App Follow us on Facebook