Windows 7: Get Product Key from my Recovery partition

karlsnooks · 09 Jul 2012

here's an example, not of the whose scenario, but this shows you how to read your own Product Key:

Script:

  # ************************************************************
# Get Product License Key
# Source is PowerShell.com > PowerTips > Getttin Windows Product Key
# For those interested in learning PowerShell this is an excellent site.
# See their 'Mastering PowerShell' for a thorough presentation of xx chapters
# ************************************************************

# ************************************************************
# Start copying with next uncommented line (no # in first character;
# Copy thru 2nd EXIT;
#  Paste into PowerShell using right-click
# ************************************************************
function Get-ProductKey {    
    $map="BCDFGHJKMPQRTVWXY2346789" 
    $value = (get-itemproperty "HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion").digitalproductid[0x34..0x42]  
    $ProductKey = ""  
    for ($i = 24; $i -ge 0; $i--) { 
      $r = 0 
      for ($j = 14; $j -ge 0; $j--) { 
        $r = ($r * 256) -bxor $value[$j] 
        $value[$j] = [math]::Floor([double]($r/24)) 
        $r = $r % 24 
      } 
      $ProductKey = $map[$r] + $ProductKey 
      if (($i % 5) -eq 0 -and $i -ne 0) { 
        $ProductKey = "-" + $ProductKey 
      } 
    } 
    $ProductKey
} 

Get-ProductKey > $env:userprofile\Desktop\ProductKey.TXT


EXIT
EXIT

# ************************************************************
# Places ProductKey.TXT on your DESKTOP
#
# **********************INSTRUCTIONS**************************
# STEP 1 *****************************************************
# RUN PowerShell as administrator
# START ORB | type POWERSHELL | CTRL+SHIFT+ENTER key combo | ALT+Y keycombo
# ************************************************************
# STEP 2 *****************************************************
# COPY, using CTRL+C, every line down thru both EXIT statements 
# PASTE into Powershell == Right-Click at the PowerShell Prompt
#  (Ctrl+V does not work)
# ************************************************************
# ***************** NOTE - POWERSHELL VERSION*****************
# if you receive this error msg:
#  Get-WinEvent: The system can not find the path specified
# you need to update your PowerShell
# you must be using Powershell 2.0 or later.
#
# To determine your Powershell version:
#   Run PowerShell
#   enter $host.version
#   you should see at least:
# Major  Minor  Build  Revision
# -----  -----  -----  --------
# 2      0      -1     -1
#
# If you do not see the above, update your Vista/Win 7.
# ************************************************************
# *************** NOTE - EXECUTION POLICY*********************
# If you haven't set the execution policy, you may need to:
#   Run PowerShell
#   enter Set-ExecutionPolicy -executionpolicy remotesigned
#
# ************************************************************

SIW2 · 09 Jul 2012

Here you go Greg: ProduKey - Recover lost product key (CD-Key) of Windows/MS-Office/SQL Server

run produkey.exe - click File>Source

karlsnooks · 09 Jul 2012

The last time I checked that Office portion thereof did not work on Office 2010. The win 7 product key part does.
Uses, but more elegantly, the same algorithm as in the Powershell script.

karlsnooks · 09 Jul 2012

From the NirSoft site:

Quote:

ProduKey is a small utility that displays the ProductID and the CD-Key of Microsoft Office (Microsoft Office 2003, Microsoft Office 2007), Windows (Including Windows 7 and Windows Vista), Exchange Server, and SQL Server installed on your computer.

Trouble is that MS changed the algorithm for Office 2010.

Works fine for Win 7.

muzokh · 10 Jul 2012

Thanks for the replies, could you please tell me that how can I run Product key.exe, actually I cannot login into my laptop.

karlsnooks · 10 Jul 2012

You notice that I said that you would need to run on another computer. You need to import the appropriate hive, alter the script to refer to the altered hive.

Researching how to accomplish these steps I leave as an exercise to you.

Have fun,
karl

SIW2 · 10 Jul 2012

If you recovery program applies a .wim as they usually do - you can't get the key directly from that .wim file.

You could try marking the recovery partition ACTIVE - use this free boot cd http://www.partitionwizard.com/parti...otable-cd.html

You might boot straight into the recovery program.

If that doesn't work, you might be able to apply the wim manually, but you would need to create boot media to do that - and it would take weeks to show you how.

Then the best thing for you is to order the recovery discs from your manufacturer - they don't usually charge for them - perhaps just postage costs.

jumanji · 10 Jul 2012

Quote: Originally Posted by SIW2

Quote:

The key is heavily encrypted and cannot be read without the OS being booted.

It can, Greg if it is an installed o/s - even if not booted......

Hmmmm..........even if it gets the key, it will be useless if the OP does not get the OEM certificate file *.xrm-ms.

And sadly, Seven Forums does not approve this method of restoring the OEM activation with the OEM key and certificate even if the OP can extract the OEM certificate from his own machine. I can only feel sorry for the OP and for all those who may find themselves in such a pitiable situation.

muzokh · 10 Jul 2012

hmmm. I really feel very confused.

alphanumeric · 10 Jul 2012

Quote: Originally Posted by muzokh

hmmm. I really feel very confused.

Preinstalled OEM versions of Windows activate against a SLIC table in the BIOS of the PC. There is a matching certificate file that Microsoft gives the OEM's. Basically, even if you can get the original product code it's useless without the matching certificate file. That product code is blocked from online activation. You're barking up the wrong tree. To do what you intend with a regular OEM media you need to use the Product code on the COA sticker and activate over the phone.

Windows 7: Get Product Key from my Recovery partition

Get Product Key from my Recovery partition problems?