Select the option to “Enter a Product Key.” Select “Change Product Key” (this option was not here on my installation, I used Method 1)Ĭlick on Start Menu > Control Panel > Programs and Features (or Add/Remove Programs, depending on your operating system).Ĭlick on your product, e.g. You should be prompted to reenter your License Key Navigate the registry to: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\14.0\Registration\ and delete the whole “Registration” key located under the “14.0” keyĬlose Regedit, Restart an Office 2010 application. I will show you three different methods of changing the License Key The solution is to change the product key to another product key. Issue: You go to activate Microsoft Office 2010 and you receive a message stating, “Your copy of Microsoft Office Professional Plus 2010 cannot be activated because the specified Product Key has already been activated the maximum number of times permitted for your software license as specified in the Microsoft Software License Terms.”
