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Windows 7: Installed wrong windows 7 cd, is formatting again necessary?


31 Jan 2013   #1

windows 7 64 bit
 
 
Installed wrong windows 7 cd, is formatting again necessary?

Hello all,
so I made a mistake.
I formatted my drives roughly a month ago. I had a cd key that I use but did not have my windows 7 cd available when I needed to re-install.

So I used windows 7 home premium. The key I use is for professional.
My dilemma is when I tried to activate (professional key on home CD), the cd key was invalid (obviously).
The "trial" is about to expire. I have installed programs, games updated drivers and done all the entertaining tasks involved with a clean install and would really not want to do that again so soon.

My question that I have:
Do I need to do anther clean install? I have the proper CD now to get verified (and the key still), but after the daunting task of a format and clean install completed recently I would rather not go through that again.
Is there a way to put the proper cd in, use the correct cd key and have it authenticate or is another clean install necessary?

Thanks in advance.


My System SpecsSystem Spec
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31 Jan 2013   #2

Windows 7 Pro. 64/SP-1
 
 

My understanding is your key must match the operating system. If not you will have to do a install that matches you COA key.
My System SpecsSystem Spec
31 Jan 2013   #3

windows 7 64 bit
 
 

That is my understanding.
The thing I am wondering is if there is a way maybe if I put the CD in and were able to verify I had a legit copy of the CD and a valid key that I could maybe bypass the format / clean install process again.
My System SpecsSystem Spec
.


31 Jan 2013   #4

windows 7 64 bit
 
 

This is a safe way to do it? Seems pretty legit.
I think its worth a try. The worst thing that I could see happening is it wont work and I have to do a clean install anyway.

Does anyone have any other ideas as well? the more options the better.

Thanks a lot for the post gregrocker
My System SpecsSystem Spec
31 Jan 2013   #5
Microsoft MVP

 

Use Windows Anytime Upgrade - How to - Windows 7 Forums

The only other option is to reinstall. Follow these same steps for Clean Reinstall - Factory OEM Windows 7 to get a perfect install which only about 5% of PC owners have.

My System SpecsSystem Spec
01 Feb 2013   #6

windows 7 64 bit
 
 

Thanks a lot for the info. I hope I can get it going without starting new.
My System SpecsSystem Spec
01 Feb 2013   #7

Microsoft Community Contributor Award Recipient

ME/XP/Vista/Win7
 
 

You can use Anytime Upgrade.

No install files needed.
Only the Upgrade key is need.
Anytime upgrade only adds-on the Programs & Features from version to version.
Windows Anytime Upgrade - How to
My System SpecsSystem Spec
01 Feb 2013   #8

windows 7 64 bit
 
 

Is the upgrade key just the cd key I have for my professional copy?
Is the cd needed at all?
Thanks for the link that look pretty simple.
My System SpecsSystem Spec
01 Feb 2013   #9

Microsoft Community Contributor Award Recipient

ME/XP/Vista/Win7
 
 

Quote:
Is the upgrade key just the cd key I have for my professional copy?
Yes, upgrade or full key.

Quote:
Is the cd needed at all?
DVD not need.
My System SpecsSystem Spec
01 Feb 2013   #10

windows 7 64 bit
 
 

Awesome thanks again.
Ill post the results if I could get it to go or not for anyone that might have the same issue in the future.
My System SpecsSystem Spec
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 Installed wrong windows 7 cd, is formatting again necessary?




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