How To Find Microsoft Windows Product Keys. Essentially all Microsoft programs require a product key as part of the installation process, including all of Microsofts Windows operating systems. All versions of Windows keep copies of the product keys used to install them in the Windows Registry but newer versions also encrypt them, meaning that finding them involves both knowing the location and how to decipher them. Fortunately, programs called product key finders can do this all for you automatically, and usually in just a few seconds. Once you have your valid product key, youll be able to reinstall Windows legally and be able to successfully activate it afterwards. Ifl3h.png' alt='Find Product Key Installed Windows 2003 Server' title='Find Product Key Installed Windows 2003 Server' />Here is a compilation list of software that is able to scan and retrieve the license key installed on your computer for backup purposes. This is very useful in case. Georgia SoftWorks Telnet Server for Windows is fast, robust, and developed for the most demanding commercial and industrial environments. G7b9nKda4/VjRbOcbTNfI/AAAAAAAACW0/31bsH26eBnc/s1600/3.png' alt='Find Product Key Installed Windows 2003 Server' title='Find Product Key Installed Windows 2003 Server' />Since Microsoft changes how they encode and store product keys from each version of Windows to the next, there are preferred programs and methods depending on which version of Windows you have. Find your version of Windows below, follow the linked how to guide, and youll have your valid Windows product key in no time. Install Flash Player 10 Linux Tar Gz Adobe on this page. See What Version of Windows Do I Have Tip If something about using product keys in Windows is still confusing for you, or youre not sure if you even need to find your product key to install Windows again, see my Windows Product Keys FAQ for help.