Sometimes, if the service doesn’t run well, then you may face the class not registered error on the Windows OS. This is a program of the Windows system that manages the Graphical services like File Manager, Start Menu, Desktop, etc. Solution-1: Restart Explorer.exe services How to Fix Class Not Registered Windows 10 Error?Ĭheck out the below top 5 solutions to fix the class not registered error in Windows systems. The applications or programs that can be affected by this error are the Google Chrome, Internet Explorer, Start Menu, File Explorer, Cortana, or any other program installed on your system. One of the main reasons for this error is that the DLL file of the particular application is unregistered. When the ‘Class not Registered’ error appears on the screen that means the program or software you started to run and operate will not work until you fix it. What does Class not Registered Mean in Windows 10? If you are facing the problem of ‘Class not Registered’ in Windows 10 at the time of running any application or program, then here is the solution guide for it.