Lost your Windows and/or Microsoft Office license key? Use WinKeyFinder to recover them and store them safely encrypted

Do you know your Windows license key?  What about your Microsoft Office license key? No? Bummer – what would happen if your computer crashed?  Sure, most computers have little stickers on the side that display the Windows license key on them but those little stickers can easily be messed up and fall off (or mutilated by a three year old). WinKeyFinder is a nifty program that allows users to recover and safely store their Windows and/or Microsoft Office license keys.

Using WinKeyFinder couldn’t be simpler. After you download and run WinKeyFinder (it is portable – no installation required) it will scan your computer. After the scan has completed, WinKeyFinder will provide information about your operating system version (Windows 7 Home Premium in my case), your Windows license key (“product key”), and some other housekeeping information:

To grab the license key for Microsoft Office, you just need to click on the MS Office button and the Office product key is displayed, like magic:

While other keyfinding tools may support more programs than just Windows and Microsoft Office, the cool thing about WinKeyFinder is it does more than simply showing you the license key information: WinKeyFinder allows users to modify the data, too:

Simply type in the relevant field to change its data and click “Modify Info” to modify that particular info. It seems like WinKeyFinder also has the ability to modify Windows product key, but I can’t seem to get that feature to work. Similarly, users can modify the product name and key for Office, too:

Another great thing you can do with Win KeyFinder is encrypt your product key(s).  To do this, click the Encrypt button from the Windows information screen or the Save And Encrypt button the Microsoft Office information window; clicking either of the previously mentioned buttons will bring up the encrypt window:

(Although the above screenshot shows Windows information in it, the same thing happens with Microsoft Office information.)

Once at the encrypt screen type in a password and hit Encrypt:

Take note that WinKeyFinder uses hash cipher encryption (not sure what algorithm in particular), so make sure to not edit anything in the textbox (you can type in the textbox, adding/removing text) after you have hit the Encrypt button; otherwise you may not be able to properly decrypt it when the time comes!

Once you have encrypted the data, hit the Save button and save the file wherever you want:

Files are stored as .WKF files, which are just simple text files, so make sure you encrypt the data before you save it, otherwise your data will be saved in plain text (i.e. anyone can read it). Also, be sure you are saving the file in a safe location which will be accessible whenever you need it.

Whenever you want to decrypt the keys, you need to run WinKeyFinder, hit the Encrypt button at the main screen, hit the …… button at the encryption screen, load the encrypted file, type in the password you used, and hit DeCrypt. After decryption, the license key saved in the file will be displayed:

Pretty cool, huh? Sure, WinKeyFinder won’t help you completely avoid disaster (you would still need installation CDs if your computer ever crashed, something WinKeyFinder doesn’t provide) but it can help you mitigate the disaster by allowing you to fetch  and store your license keys in a safe place prior to a technical glitch. With your license keys stored safely and being easily accessible, you can laugh at Bill Gates’ pathetic attempt to force you to buy a new copy of Windows or Microsoft Office. (However, as a word of caution, it has been known that the license keys pulled by these license key finding programs are not always 100% accurate – so don’t depend on WinKeyFinder as the know all, be all. WinKeyFinder should be a last resort in case you have no other way of accessing your license key(s).)

You may download WinKeyFinder from the following links:

Version reviewed: v1.73 Final

Supported OS: Windows 98 and higher (32-bit), Windows XP and higher (64-bit), and Microsoft Office 2000 and higher

Download size: 252 KB

WinKeyFinder homepage [direct download]

Related Posts

  • Adam Mockett

    Yes, that fixed the “unexpected error”, on launch of WinKeyFinder175.exe, for me, too.

    Thank you.

  • Brian

    I prefer to use KeyFinder Plus, which provides much more useful features than WinKeyFinder.

  • @Kwok: I so totally do not remember writing that comment almost a year and a half ago :P

    Glad to see it worked though!

  • Kwok


    change to 32bit in video card, it is working now, thank you very much.

  • zigmund

    Thank you for the tip. I’ll give it a try, I do have SP3 installed and all patches till OFF2K EOL. And YES, I’m the one still using it :) ‘coz I need an Office tool, not a Christmas Tree.

  • @zigmund: Wow, you’re the one still using it ;-) Most keyfinders can’t do office 2K, only program I know which may work for you is WinKeyFinder – supposed to retrieve Office 2000 key but only if you have installed Office Service Pack 2 – http://www.winkeyfinder.com/download/func-showdown/14/

  • zigmund

    not working for an old fashioned one like me. still using office 2k… any ideea?

  • Nice find, more features than other keyfinders.

    A word of warning about the Windows product key. If Windows was preinstalled by a major manufacturer (Dell, HP etc) it is likely that the product key retrieved by any keyfinder program will be the manufacturer’s general install key – this is not the same as the product key on your license sticker and is only used by the manufacturer’s own restore partition/recovery discs.

    If you try to reinstall Windows using a standard Windows disc the manufacturer’s product key will not work – you must have the actual key from the license sticker.

  • satisfied

    thanks alot for the info, i have search this “unexpected error” elsewhere but nothing matched, finally i found it here.

  • @Disappointed.: Then there’s also this in the forums:
    “try changing the color depth or color quality of your video card to 32bit true color mode from the Display control panel and run WinKeyFinder again. after I changed the color depth from 16bit color to 32bit color on some of my XP machines, WinKeyFinder no longer makes those “unexpected error” messages. ”
    So could you try this too?

  • @Disappointed.: Hmm. Could you try this download the programmer put up?
    Then try WKF.

  • jumbi

    have used previous version and it’s a good program!

  • Disappointed.

    I get “Unexpected Error” when i try to run/install the download. I have WinXP w/ SP3 and Office2007.

  • peek3354

    Thank you very much.
    I have been looking for this kind of program for a very long time.
    My computer has been handed down to me and as such most of its documentations are either lost or missed placed.
    I can breath a little easier now.
    Again thanks

  • Robert

    zia is interesting

    Also, this download worked flawlessly and nearly instantaneously. Perfect. Thank you so much!

  • zia

    I am interesting

  • Tortuga

    Hi Locutus

    Thanks for the info. Very useful!

    Wanted to let u know you did a magnificent job keeping the site “alive” & helping out on the forum. I dont post much, but come every day & read everything :D