Don't go by what Win7 says...... you can now "upgrade" with a Home Premium Disk. Been there, done that.Hello community,
first of all thanks to unawave for this great article. It seems to be popular all around the forums - good job.
As this article is mainly addressing Win7 Ultimate RC I was wondering if a final version could also be "downgraded". Unfortunately Microsoft must have read the article as well and prevents now an easy downgrade.
I tried to downgrade from Ultimate RTM to Home Premium RTM, changed all the registry keys as described, but Win7 set up keeps telling me that I still have an Ultimate installed.
Thanks for the help !
Scotty
Seems so that it is important to enter the correct version strings for:Don't go by what Win7 says...... you can now "upgrade" with a Home Premium Disk. Been there, done that.
Exact syntax is EditionID = ProfessionalSeems so that it is important to enter the correct version strings for:
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion]
EditionID=???
ProductName=???
Can you give us the correct strings for "Home Premium" ? Capital letters ? Spaces ?
And your language localization ?
Exact syntax is EditionID = Professional
and ProductName= Windows 7 Professional
If you check your version after changing the registry it will show Ultimate but you can then downgrade an RC Ultimate to Professional.
Eyes, if you've done this, you have other problems.
OK - with "Professional" you can't make big mistakes in spelling.Exact syntax is EditionID = Professional
And there I see this in German version:you can now "upgrade" with a Home Premium Disk. Been there, done that.
Provided you have modified cversion.ini. BTW, I think the ProductName=Windows 7 HomePremium is the correct entry for Home Premium. I believe that Icrontic Upgrade the Windows 7 RC to any retail version is the best authority on the whole process and it states HomePremium for both EditionID and ProductName. Eyes, I suspect your upgrade media.... have you tried burning the ISO at X1 or X2?So unawave, I'm gonna use the English version of win7, then the Regkey should be like this:
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion]
EditionID=PROFESSIONAL
ProductName=Windows 7 PROFESSIONAL
and can I use the \"Upgrade\" Edition to upgrade the RC1 to Retail?
Wondering if anyone can help me with this.
I've done all the above and it still get the same problem no matter what I do. It goes through all the upgrade process until it reaches the "transferring files, settings and programs" and then it just hangs and does nothing!!
Anyone have any advice? Cheers
OK guys,
did some research during the weekend and it seems that I finally got it.
Here's the trick:
I installed a fresh Home Premium on a separate test system and right after completion I exported the registry keys in "HKLM\Software\Microsoft\Windows NT\CurrentVersion". I kept only the ROOT ENTRIES, not the whole tree with all subkeys (about 20 entries).
ProductName=WINDOWS 7 HOMEPREMIUM
Unfortunately I have no English version so I couldn't try it out.
Anyway, good luck.
Scotty