We help IT Professionals succeed at work.

How can I retrieve Office keys from computer for OS upgrade?

syssolut used Ask the Experts™
I have a number of users who are changing from Windows 7 to Windows 10.   Many have Office 2010 or 2013, but most don't have there 25  digit key to re-install Windows.   I have tried Magic Jelly Bean and retrieved some of the keys to be able to re-install Office on Windows 10 but most are coming up just showing Windows 7 key.   How can I find the 25 digit key off the computer or registry if a keyfinder cannot find it?   Any ideas?
Watch Question

Do more with

Expert Office
EXPERT OFFICE® is a registered trademark of EXPERTS EXCHANGE®
IT administrator Small Business Owner
Belarc Advisor will pull the product keys for Office that is installed via the Product key from installation media like a CD/DVD or digital download.
If you have purchased MS Office via a digital download from the Microsoft store, that key is stored in the users Microsoft Account and this probably won't pull it.
But I think what you are talking about are the former, installed from media.
Here is a review of 20 best Product key finders, and Belarc is at the top of the list.
Tom CieslikIT Engineer
Distinguished Expert 2017

If you doing Windows upgrade by running setup.exe from Windows 10 installation folder/USB/DVD then your windows will be upgraded to Windows 10 and you don't need to reinstall Office.
If you need a clean installation then you can use Win KeyFinder
Click on Office button and you'll be able to safe key to txt file


Run website and wait 15 sec, download will start. Do not click on any advertisement

NVITEnd-user support

> Many have Office 2010 or 2013...

Not sure you can get the keys Microsoft changed the way the key is stored for 2013 and above. See solution here https://www.experts-exchange.com/questions/29165132/Migrating-from-Win-7-PC-to-Win-10-PC-Missing-CD-for-MS-office-home-and-business-2013-Adobe-Acrobat-XI-Standard-Can-the-system-registry-help-me-find-the-product-keys.html
Tom CieslikIT Engineer
Distinguished Expert 2017

It's only about new Office 2016 and abow,, old one are still in registry, This was my screenshot
I've had "some" success with ProduKey by NirSoft


Download link(s) are at the bottom of the page.


Belarc Advisor worked perfectly.  It gave me the three key codes I needed.   Thanks