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Windows 7 Enterprise Downgrade by MP7000 Windows 7 Enterprise Downgrade by MP7000
Downgrade Windows 7 Enterprise to a Windows 7 Version that you have buy.

Start the Program and select the Version you wand to Downgrade. Then insert you Install Disk you buy and click Install. Then select Upgrade and Windows will downgade your Windows Enterprise Edition.
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:icontexasmyers:
TexasMyers Featured By Owner Aug 21, 2015
Confirming this works, 8/21/2015:

If you are using Windows 7 Enterprise 64 Bit then you must manually change the text in the registry at:

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion

Change the Edition ID Key to "Home Premium"
Change the ProductName Key to "Windows Home Premium"

I then inserted my OFFICIAL Windows 7 Professional 64 Bit installation DVD and pressed "Install" then later "Upgrade".  

Awesome comments below got me to this point, one machine downgraded, the second machine at 42%.  All credit to the guys below.  I'm wondering if this change (above) is all that is needed for the upgrade anyway, and file download on the right and above just changes these registry values for you?
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:iconnukisdan:
nukisdan Featured By Owner Aug 13, 2015
where is the link??
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:iconeccrk:
eccrk Featured By Owner Aug 5, 2015
For all you 64-bit people out there,mortybrown's fix works.
There are three other things to keep in mind whatever your install
i) My system disk was encrypted with Truecrypt so as a precaution I decrypted it before I started the process
ii) MP7000 says above "insert you Install Disk you buy and click Install". It's tempting to think after the registry changes you should reboot off the Install DVD. This is not what he is saying - don't reboot, just run the Install from the DVD as Administrator - depending on which version it may be called Setup.exe
iii) Even after you have installed your new License Key the process is not over. After yet another reboot you will need to go to Control Panel\All Control Panel Items\System, Windows Activation and click on the blue link there. This initiates the process that verifies your license key.
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:iconjreedc243:
JReedC243 Featured By Owner Jul 30, 2015  Hobbyist General Artist
Thank you! This was exactly the tool I needed to get my Win7 Ultimate (acquired through the use of magnets) back to a legit copy of Home Premium so I could upgrade to Windows 10. 
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:iconimiadmin:
imiadmin Featured By Owner Jul 28, 2015  New Deviant
Hi,
could you send the download link?
best regards
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:iconwelshgasman:
welshgasman Featured By Owner Jul 10, 2015  New Deviant
I manually edited Ultimate to Professional in both locations, but it still recognises my system as Ultimate.?

Tried the tool, and it has not made any difference to the registry.?

Any advice on how to get past this problem?

TIA
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:icondynabase:
dynabase Featured By Owner Jul 5, 2015  New Deviant
I was wrong.  The mortybrown solution below does work.  The issue I had was with the first Windows ISO I tried to use.  It did not have SP1 on it and my installed OS did have SP1 installed.  This solution only works if the service pack matches on the ISO and the installed OS.  To state it another way if your installed OS has SP1 installed the ISO you use must also have SP1.  If it does not you will get errors and it will not update.  The bottom line is the ISO must have the same or higher Service Pack level before you can downgrade.  If your ISO does not have SP1 you can uninstall SP1 from your OS and it will work. 

I have done two computers so far and the downgrade worked perfectly.  Keep in mind you will need a valid Software Key to reactivate the new windows version once it is installed.  If you have a version of Microsoft Office installed the first time you log in you will get an error stating it is not a registered copy.  When that happens just click on register online option and it will find the key and register it properly.  No need to find the Key again because it is still on your machine.

The downgrade tool edits the correct registry path for Win7 32 bit version by changing nothing else than:

   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\EditionID
   and
   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProductName

to the values you request inside the tool  (Windows Version you are installing).

If you use Win7 64 bit however then execute the tool and additonally change the EditionID and ProductName values in
   HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion

Thanks mortybrown.  You saved my tail with your post.  I could never get this tool to download. 
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:icondynabase:
dynabase Featured By Owner Jun 30, 2015  New Deviant
The download link does not work.  The Mortybrown solution does not work.  I changed all the stuff he recommended and I still get the newer version warning when I try to install Pro.

DOES ANYONE HAVE A SOLUTION OR A COPY OF THIS SOFTWARE THAT CAN BE DOWNLOADED.
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:iconmortybrown:
mortybrown Featured By Owner Jul 1, 2015  New Deviant
I don't know what you're doing wrong, i click on the Download symbol and the download opens immediately.
Here's an alternate download site:
www.softpedia.com/get/System/O…

But you will still need to change the registry values for the 64 bit windows version by hand (but you can copy it from the 32 bit part the tool does for you).
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:iconmortybrown:
mortybrown Featured By Owner Edited Jun 27, 2015  New Deviant
I found the solution why this works sometimes and sometimes not on www.unawave.de/installation/do…
-> It works only for 32 bit version of win7 and not 64 bit version.

Workaround:

The downgrade tool edits the correct registry path for Win7 32 bit version by changin nothin else than:

   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\EditionID
   and
   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProductName

to the values you request inside the tool.

If you use Win7 64 bit however then execute the tool and additonally change the EditionID and ProductName values in
   HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion

Tested that and was able to run the upgrade from CD afterwards on my 64 bit Windows.
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:icondynabase:
dynabase Featured By Owner Jun 26, 2015  New Deviant
Thanks for the reply.  It would be nice if that article was in English.  I would still like to know why I can't download the file from this site.  Since it is probably just a script if someone has this software maybe they could print out the script since we can't download it.
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:iconmortybrown:
mortybrown Featured By Owner Edited Jun 26, 2015  New Deviant
The download button is on the right side below the icons for Facebook, Twitter, etc... then comes add to favorites button, then DOWNLOAD :)
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:icondynabase:
dynabase Featured By Owner Jun 24, 2015  New Deviant
can't download windows 7 enterprise downgrage.  What gives?
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:iconmydeal200:
mydeal200 Featured By Owner Jun 21, 2015  New Deviant Student General Artist
I tried to do the downgrade from Windows 7 Enterprise to a legal copy of Windows 7 Pro, as the described method, and still have massage saying:    Your current version of Windows is more recent than the version you are trying to upgrade to. Windows cannot complete the upgrade.

Please help and thank you.
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:iconzmzdsc:
zmzdsc Featured By Owner Edited Jun 17, 2015
I do not work,
I have W7 Enterprise SP1 x64 Build 7601, I want to downgrade to Professional x64, any help?
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:iconlocomaure:
locomaure Featured By Owner Jun 5, 2015
Thk
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:iconfejese:
fejese Featured By Owner May 31, 2015
DatWatGuy are your running it as administrator? (Right click, Run as administrator)
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:icondatwatguy:
DatWatGuy Featured By Owner May 26, 2015
Didnt work says access to the registry key denied
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:iconsolala0815:
solala0815 Featured By Owner Mar 5, 2015
Well done, works like a charm.
First I was a bit confused.
1) Start the Program and select the Version you wand to Downgrade
2) insert you Install Disk you buy and click Install
3) select Upgrade and Windows will downgade your Windows Enterprise Edition

#3 was confusing me a bit. Later I acknowleged the downgrade program changes the program version stored in the registry to the next lower version you want to install.
My example: I wanted to downgrade to Professional, when I clicked on "Downgrade to Professional", the programm changed the version in the registry from "Enterprise" to "Home Premium". Once I inserted the Win7Pro DVD and clicked on install (and later on "upgrade"), Windows thought it would upgrade from "Home Premium" to "Professional". A very clever method, I must admit.
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:iconsambytes:
SamBytes Featured By Owner Jan 23, 2015
Does this thing really work?
I got the compatibility Report error; "Windows 7 enterprise cannot be upgraded to Windows 7 Ultimate.....
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:iconhoecaker:
hoecaker Featured By Owner Dec 19, 2014
Thank you so much....
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:iconemilkyo:
Emilkyo Featured By Owner Oct 23, 2014
probando
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:icondbojan:
dbojan Featured By Owner Aug 3, 2014
all the way to the right, near the scroll bar of the browser.
www.deviantart.com/download/15…
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:iconlevi-yoshimoto:
Levi-Yoshimoto Featured By Owner Jul 12, 2014  Hobbyist Artist
For all who cannot find the download link. It is at the top with the letters Download
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:iconprofheesh:
profheesh Featured By Owner Jul 5, 2014
where is the link to download win7 downgrade!
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:iconulfho:
ulfho Featured By Owner Jun 30, 2014
I cannot find the download link. Can someone please inform me?

Best regards
Ulf
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:iconvincemelara:
vincemelara Featured By Owner Jun 23, 2014
Esta muy bien el aporte
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:iconmuataz:
muataz Featured By Owner Jun 20, 2014
where is the link??
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:iconmuataz:
muataz Featured By Owner Jun 20, 2014
thanks
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:iconorik123:
orik123 Featured By Owner Jun 16, 2014  Student Artist
thank you very much
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:iconzhoud33:
zhoud33 Featured By Owner Jun 12, 2014
Just like someone said before, nothing happened after running the program.  I only saw the "Current version" in the program window is changed to whatever version I selected in a previous running of the program, but no change what so ever in the real windows version.
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:iconzhoud33:
zhoud33 Featured By Owner Jun 12, 2014
The Download button is on the right side, the ZIP download, 163 KB.
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:icondymo15:
Dymo15 Featured By Owner Jun 5, 2014
Could you send me the download link too please?
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:iconafbuyur:
Afbuyur Featured By Owner May 29, 2014
could you send the download link?
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:iconafbuyur:
Afbuyur Featured By Owner May 29, 2014
...thank you very much...!!!
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:iconafbuyur:
Afbuyur Featured By Owner May 29, 2014
thank you
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:iconsnoopmattymatt:
snoopmattymatt Featured By Owner Apr 23, 2014  Hobbyist Filmographer
I tried to use this, but when I ran it as the administrator, clicking the buttons did nothing. Any tips?
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:iconkiba-kobimi:
Kiba-Kobimi Featured By Owner Apr 21, 2014
It has Windows 7 Home Basic?
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:iconhawring:
hawring Featured By Owner Apr 2, 2014
where is the download link?

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:iconnstarr1994:
NStarr1994 Featured By Owner Mar 8, 2014
Do you need the windows version disk you are trying to downgrade to?  or will any version windows 7 disk work after changing the registry keys?
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:icondrvice01:
DrVice01 Featured By Owner Jan 19, 2014
This was an amazing help, thank you SO much!
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:iconnewyears78:
NewYears78 Featured By Owner Dec 31, 2013
Does this work?
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:icondroxer:
droxer Featured By Owner Dec 4, 2013  Professional Artisan Crafter
Link please
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:iconbashful-stool:
bashful-stool Featured By Owner Nov 19, 2013
I upgraded Win7 Home to Pro with an Anytime key. I'd like to downgrade back to Home without erasing data, but dont have the original install discs. Would this work if I get new Home Prem discs?
Sounds like people have alot of problems with program.
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:iconthesauce05:
TheSauce05 Featured By Owner Nov 16, 2013
Can't get it to work for me. Get some sort of error about accessing the registry.
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:iconjackyho0706:
jackyho0706 Featured By Owner Nov 14, 2013
good tool
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:iconrcweber:
rcweber Featured By Owner Oct 13, 2013
<font><font>Dónde está el enlace de descarga?</font></font>
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