Windows 7 Forums

Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.


Windows 7: Get Product key from other OS

15 Sep 2011   #1
cclloyd9785

Windows 7 Home Premium x64, Mac OS X 10.6.2 x64
 
 
Get Product key from other OS

Ok, since I explained it bad in the other topic, I'll explain it here.

I wiped my Windows 7 since I couldn't boot into it.
Now I am on a new copy freshly installed, and need my old key to activate it.

So how can I go about getting the key from my old installation? I have every file saved (from a complete disk backup). Is it stored in a file, or registry, or what?


My System SpecsSystem Spec
.
15 Sep 2011   #2
karlsnooks

MS Windows 7 Ultimate SP1 64-bit
 
 

Would it be possible to connect your old drive and boot it up?

If yes, the answer is easy.
My System SpecsSystem Spec
15 Sep 2011   #3
theog

Microsoft Community Contributor Award Recipient

ME/XP/Vista/Win7
 
 

My System SpecsSystem Spec
.

15 Sep 2011   #4
bobkn

Windows 7 Pro X64 SP1
 
 

Quote   Quote: Originally Posted by cclloyd9785 View Post
Ok, since I explained it bad in the other topic, I'll explain it here.

I wiped my Windows 7 since I couldn't boot into it.
Now I am on a new copy freshly installed, and need my old key to activate it.

So how can I go about getting the key from my old installation? I have every file saved (from a complete disk backup). Is it stored in a file, or registry, or what?
Sorry. I can be a little literal-minded.

Where is the COA (certificate of authenticity) which is supposed to be delivered with every copy of WIndows, or Windows PC?

If you have a copy of your old Windows Registry, the key is present there. Unfortunately, it's encrypted. All of the utilities I've ever used to read the key would only read it from the registry of the active copy of Windows. Maybe someone else can point you to a utility that can find and decrypt it.

I've never used this utility, but it looks like it should work:

ProduKey - Recover lost product key (CD-Key) of Windows/MS-Office/SQL Server

You'd have to extract the Registry from the backup. Maybe it'd be simplest to extract the whole Windows directory.

Good luck.
My System SpecsSystem Spec
15 Sep 2011   #5
karlsnooks

MS Windows 7 Ultimate SP1 64-bit
 
 

bobkn,
The utility works. There is a link to it in my sig. If he could boot up his old disk, then he would be able to use the utility to recover the info he needs.

For a laptop, the COA sticker is located on the bottom of the laptop.
My System SpecsSystem Spec
15 Sep 2011   #6
KEDecilon

Windows 7 Home Premium
 
 

Hi, new guy here.

If the system is unbootable, but you can still connect it to another Windows PC and read the disk, I have used this method before - - -

Recover Windows XP Product Key from ntuser.dat in Corrupted or Unbootable System My Digital Life

Good Luck!

Edit - -

The Link is about Windows XP, I have used it on Vista disks.

This link shows basically the same method, and claims that it works on Windows 7.

http://www.dagondesign.com/articles/...-key-recovery/
My System SpecsSystem Spec
15 Sep 2011   #7
cclloyd9785

Windows 7 Home Premium x64, Mac OS X 10.6.2 x64
 
 

The utility bobkn posted worked. Even though I found the box an hour later :P. Thanks all for your help.
My System SpecsSystem Spec
Reply

 Get Product key from other OS




Thread Tools Search this Thread
Search this Thread:

Advanced Search




Similar help and support threads
Thread Forum
New product key to replace invalid product key
Just discovered that the Win 7 Professional Retail Version I purchased, downloaded & installed has a bogus product key. I've since ordered a genuine Win 7 copy. When it arrives, can I just enter the new product key into the existing system without reinstalling Win 7 again, following the "change...
Windows Updates & Activation
Product key giving product is upgrade not clean install on activation
I picked up this lenovo laptop and shortly after I got it the HDD went out. I replaced the HDD and Installed a full version of Windows XP SP2 then used the Win 7 upgrade disc I bought. I did a clean install of the Win 7 then I activated it at that time without any issues. Some time after that I...
Windows Updates & Activation
Where is the product key
I am reinstalling my OS and no longer have the install CD. Where is the product key stored in the registry so I can activate it after reinstalling it?
Windows Updates & Activation
Windows 7 Product Key, and SP1 Product Key.
Hi, I'm new. Right now, I'm really worried. I just bought Windows 7 Ultimate from Ebay, installed it and everything works fine. I tried the Product Key that came with it, but it said on the computer that it was blocked. That's ok, since it said on the page that it wouldn't work. So I went...
Windows Updates & Activation
Product Key Does Not Match Current Windows SKU (Foreign product key?)
So short story, I work at a college tech site that fixes student and faculty computers. A foreign exchange student from Japan with a Sony Vaio (most likely from Japan as well) managed to get a virus on his computer and he was blocked off our network. Our policy is that we wipe and reinstall the OS...
Software
Default Product Key and Product Key
What is the difference between a Windows 7 Default Product Key and a Product Key? Just curious
General Discussion


Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 04:02.

Twitter Facebook Google+



Windows 7 Forums

Seven Forums Android App Seven Forums IOS App