Windows key updating tool
First thing you do is select one of the listed operating systems on the page. Windows 10 users are asked to download the Windows Update Troubleshooter to their device and run it for instance, while Windows 7 users to run the built-in troubleshooter of the operating system instead before they are offered an updated -- but different -- update troubleshooter for the operating system. While you get fairly basic suggestions for Windows 7 -- try the troubleshooter, if that does not work, run a system recovery -- suggestions for Windows 10 include two additional steps.The first asks you to find the most recent update for Windows 10 that is installed on the machine, run a search for it on Microsoft's Update site, and download and run the update again.The Magical Jelly Bean Keyfinder program is a free utility that retrieves product keys from the registry.It also has the ability to find product keys for Microsoft Office programs, along with product keys from many other non-Microsoft programs.
Fortunately, there are many free key finder programs available to help.I like Product Key Finder because it's designed very well, instantly finds product keys, allows an easy XML or CSV backup of keys found, and also lets you change your Windows registration or product key right from the tool.Finds Keys for Other Software: Microsoft Office 2013, Office 2010, Office 2007, Office 2003, Office XP, Office 2000, Windows Server 2012 & 2008, plus a long list of other Microsoft and non-Microsoft programs.The second option, if that did not work either, is to run commands on the command line (with administrative privileges): is the Deployment Imaging and Servicing Management tool which you may use to correct Component Store corruption.
The second command checks core Windows files for corruption, and replaces them if possible with the correct version.I suggest you click on advanced on the first screen that opens and disable the automatic repair option.