How to find lost Windows product key [Tip]

The Windows product key is a 25-digit code that comes with the operating system. It is required to activate Windows. As such, you cannot reinstall Windows without the product key. If you’ve lost your product key, this is how you can quickly find it again.

ProduKey is a Nirsoft utility with which we can find the Windows product key, and a few others for Microsoft packages. Open this page and click on Download Produkey with full install/uninstall support to add it to Windows. Then click the ProduKey exe to open the window in the shot below.

productXkey

The software lists your Windows product key and ID. It will also tell you the product keys and IDs for other Microsoft software such as Internet Explorer and MS Office. It will show you the product keys for the following software:

  • Microsoft Windows 98/ME
  • Microsoft Windows 2000
  • Microsoft Windows NT
  • Microsoft Windows XP
  • Microsoft Windows Vista
  • Microsoft Windows Server 2003
  • Microsoft Windows 7
  • Microsoft Windows 8
  • Microsoft Office 2000 (Only ProductID is displayed)
  • Microsoft Office 2003
  • Microsoft Office 2007
  • Microsoft Office 2010
  • Microsoft SQL Server 2000
  • Microsoft SQL Server 2005
  • Microsoft Exchange Server 2000
  • Microsoft Exchange Server 2003
  • Visual Studio
  • Internet Explorer

Now, save the product key and ID. Click the Save Selected Items disk icon to save the product key details. That saves the product key details to a text file as in the shot below.

productXkey2

So now you can quickly find the product keys for Microsoft packages. With them you can re-install a variety of software packages.

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6 comments

  1. David Roper

    By now you must know I am a Fan of your articles and Kent’s as well. I had to fuss at Kent this week for using a title suggesting a “tip” when it was actually a “plug” for a utility, not a tip that existed in Windows that was “unused or unknown”.

    Now my favorite author has done it so here’s my “fuss” at you. But in fairness, now, I do not have a solution for you or Kent.

    Tips should be uncovered “easter egg” type tips we regular people do not know. My opinion. Other can chime in here, and “fuss” at me as well. I can take it.

    But what do we call these gems of Utilities? Incidentally, I could enjoy an entire Kent and MatthewA segment on just NIRSOFT utils and other Gems of other authors.

    Maybe we (on our DotTech) use “Gems of Software” AND “Tips of Software” ? …for the two types?

    Why not? We DotTechers coined the phrase Crapware and it has stuck in the industry.
    Voting will be open 60 minutes after the show ends… sorry, watching too much America’s Got talent.