Windows 7: upgrading windows

How can i install windows 7 home premium using an ultimate disc.

i know there is a file you can delete that will allow you to access all versions of windows but i forgot which file it was.

If Im not mistaken, It shouldnt matter that the disc is the Ultimate.

When you put in your Key, it will know it is for Home Premium and set it up accordingly.

Here is one link describing what to do.
How to Select Any Edition or Version (SKU) of Windows 7 to Install From Single Edition DVD Disc Media or ISO » My Digital Life

Just out of pure curiosity, why do you want Home Premium instead of Ultimate? If there is some advantage I don't know about I would love to hear what it is for future reference.

Hi Wishmaster

Sorry you are mistaken, can be done with Vista, file ei.cfg needs to be removed first.

Unlock ALL Versions in your Windows 7 Build 7000 ISO

Ahh. Thanks for the correction.

the version of ultimate i have is an OEM version so it won't let me activate it on my new computer but i have a product key for home premium but no disc.

thanks for your help

That makes sense. I thought we were talking about installing HP or a computer currently running Ultimate. Happy to help. Feel free to write back if there any problems with the install.

EDIT: I just remembered someone telling me that you can use a Home Premium key to activate Ultimate when using this method. I'll look around and tell you if I confirm this.

Hello huddo, welcome to Seven Forums!



There's also an excellent tutorial of how to make a disk or USB bootable universal installer, have a look at the link below.


Windows 7 Universal Installation Disc - Create

I was wrong. You do need to use Home Premium if that is all you have a key for. Not sure where I got the idea that a HP key would activate Ultimate. Sorry for any confusion I might have caused.

Hi BFK

Thank's mate.

I have been looking for this one for 30 mins.

Ray.