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Windows 7: Windows 7 Pirated version to Legit Win 7 Pro

03 Aug 2010   #11
Petey7

Windows 7 Professional SP1 64-bit
 
 

I always wondered if their was something in the registry for this kind of thing. All I can think of is maybe an upgrade install, but I don't know if you can do that. I doubt it for going from ultimate to pro.


My System SpecsSystem Spec
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03 Aug 2010   #12
gregrocker

 

Quote   Quote: Originally Posted by ncimike3 View Post
Actually I just realized that I was misinformed. it wasn't pirated. It had a legitimate Win 7 Ultimate installed. The problem is that I don't own a product key to authorize the computer because the install dvd was used on another machine months ago and the product key is in use. I do own a good product key for win 7 64 bit "Professional". Does this change anything?
Putting "Pirated" in your headline (even erroneously) is like yelling fire in this theater and somewhat reckless, so please tell us where the Ultimate installer and your Professional Product key were obtained.

If you know that the installer is legitimately obtained and therefore safe to use, you can indeed change from Ultimate to Professional to use your Pro Product Key, employing a popular workaround used by many to change successfully from the RC to retail Win7.

Unlock Win7 Professional version in your Ultimate Installer if necessary by extracting the ISO using ImgBurn, then run the ei.cfg removal tool to unlock all versions, burn to DVD.

Change the two registry keys exactly as shown below which tricks the installer into thinking it is doing an always-allowed same version Repair Install:

Windows 7 Pirated version to Legit Win 7 Pro-regkeys.png

Once the keys are changed to read exactly as they do here, back up your files and a Win7 Backup Image externally, run a Professional Upgrade install from Ultimate desktop, then activate at Computer>Properties with your Pro key.


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03 Aug 2010   #13
ncimike3

Win 7 64 bit
 
 

That is what I was looking for. Thank you
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03 Aug 2010   #14
gregrocker

 

After some question about whether the workaround is still possible, I tried it myself today on my Win7 Ultimate Signature Edition and it worked fine:


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Windows 7 Pirated version to Legit Win 7 Pro-capture3.png  
Attached Images
Windows 7 Pirated version to Legit Win 7 Pro-capture.png Windows 7 Pirated version to Legit Win 7 Pro-capture4.png Windows 7 Pirated version to Legit Win 7 Pro-capture2.png 
My System SpecsSystem Spec
03 Aug 2010   #15
cluberti

Windows 10 Pro x64
 
 

It is not possible to "downgrade" with a product key, so as unfortunate as it may be, you're going to have to install Win7 Professional on that PC to activate it with a Win7 Professional key.
My System SpecsSystem Spec
04 Aug 2010   #16
alphanumeric

Windows 10 Education 64 bit
 
 

Quote   Quote: Originally Posted by gregrocker View Post
After some question about whether the workaround is still possible, I tried it myself today on my Win7 Ultimate Signature Edition and it worked fine:
I've done it also to go back to Home Premium from Ultimate. It took a while but it worked. I did get a not genuine watermark at first, but once I activated with my original Home Premium product code all was fine and legal again.
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 Windows 7 Pirated version to Legit Win 7 Pro




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