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Windows 7: From Home To Prof. using media disk

13 Apr 2010   #1

Windows 7
 
 
From Home To Prof. using media disk

Dear All,
I`m running windows 7 home premium on my new laptop. Lately, I downloaded a professional version iso image from my university and I put on dvd having the product key. Its a complete professional version not upgrade one.
I wanted to upgrade the home version which I have.
I started to install windows using the dvd of professional then I hit upgrade not custom. Then I received a message as follows:
To upgrade from one edition of Windows 7 to another edition of Windows 7, use Windows Anytime Upgrade. Cancel the upgrade, open the Start menu, and search for Windows Anytime Upgrade.
I started Windows anytime upgrade as per instruction but I found out that there is no option to install from the dvd and that I should have what so called ubgrade key.
I don`t like to do a clean custom installation. Instead I want to upgrade only using my dvd of full professional version.

Any help will be greatly appreciated.
Thanks,
Geddo


My System SpecsSystem Spec
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14 Apr 2010   #2

Windows 7 Ultimate 64 bit Steve Ballmer Signature Edition
 
 

Welcome to the forums Gadoo77!

Hmmmm... Have you tried inputting your MSDNAA Windows 7 Pro key in when asked for the upgrade key? I wonder if it will still work... it is a valid key after all.

If all else fails you will have to back up, and perform a clean install. <-- some great tutorials on clean installs here as well as how to use the EZ Transfer utility included with Windows 7 for your backup.

I am real curious as to how your issue works out, please keep us informed.
My System SpecsSystem Spec
14 Apr 2010   #3

Windows 7 x64 pro/ Windows 7 x86 Pro/ XP SP3 x86
 
 

I have encountered this problem before. For some strange reason, MS apparently does not permit doing an anytime upgrade with a full version key. Thats strange because a full price key should let you do anything. But also, FYI, the old key is "obsoleted" when you upgrade. OTOH, if you do a clean install from the pro dvd, your home premium key (if it is retail) is still good to use. Maybe, purchase a WAU and trade your full pro with a pal.
My System SpecsSystem Spec
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14 Apr 2010   #4
Microsoft MVP

 

Yes there is a way to do it. But first try using your retail key in the Anytime application as it has been reported to work sometimes.

If not, you need to adapt the registry workaround found in this tutorial which helped millions of beta testers upgrade/downgrade from RC or RTM to their purchased version of Windows 7:
Upgrade the Windows 7 RC to any retail version Icrontic Tech

In your case you would change the Registry keys (shown below) now reading "Windows 7 HOMEPREMIUM" to read exactly as they do in this screenshot, making Windows 7 think it is doing an allowed Repair Install (upgrade over itself):
From Home To Prof. using media disk-capture.png


My System SpecsSystem Spec
14 Apr 2010   #5

Windows 7
 
 

Thank you so much Gregrocker. It works fine now when I did the instructions in the tutorial above and I could upgrade from Home to professional now. Really it was fantastic trick to change the MinClient value to 7000 and modify the registry keys.
Thanks a million
Geddo
My System SpecsSystem Spec
15 Apr 2010   #6
Microsoft MVP

 

Glad it worked, and a follow up:

Most all of us here recommend clean installs, and that is my specialty to begin with. That said, this workaround was one of the most popular around here right after Windows 7 release. Users raved about how easy it was, giving the impression that someone had finally found an Upgrade install that was nearly perfect.

This was admittedly hard to swallow since the RC was supposed to be full of code that should never be upgraded to anything. I was initially hesitant to give it out for this reason. But the raves from Users were hard to argue with, since no one ever expects anyone to rave about an in-place upgrade. Perhaps it was because they were used to the buggy RC that any increased performance was impressive.

I mention all of this again because I did two of these in-place "downgrades" for friends across country via Remote Desktop, even removing their XP partitions and recovering the space and MBR into Windows 7. Now I am ready to travel to do the necessary clean install to replace the temporary in-place done to their Home Premium retail. And guess what? They are so happy with the in-place that neither wants to bother with a clean reinstall. They can't imagine it being better.

I suspect it could. You think i should press them to do it anyway? This is a delicious dilemna for an install obsessive: An in-place Upgrade which was deemed impossible is now preferred to a clean reinstall?
My System SpecsSystem Spec
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 From Home To Prof. using media disk




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