[Solved] Class error not registered in Windows 10

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Philippe Gloaguen
@philippegloaguen
SOURCES CONSULTED:

support.microsoft.com

Author and references

Windows worked to improve upon its shortcomings with each concurrent version and update. They read the generic comments provided on their forums and improve them with each update, fixing most of the known issues. However, while many of them remain unsolved, some are built and we simply need to learn how to deal with them. One such known issue is when the user receives the following error when trying to open applications and File Explorer:

Class error not registered in Windows 10



Some important applications when trying to open which we get this error are File Explorer, Internet Explorer, Start Menu, etc. Since these applications are crucial, the problem could cause a total work stoppage.

The reason for this error is that the DLL files of these programs have not been registered. Try the following solutions one by one to fix the problem:

Solution 1: Register the DCOM component

1] Press Win + R to open the Run window. Enter the dcomcnfg command. Pressing Enter will open the Component Services window.

2] In the Component Services window, continue expanding and navigate to the following path:

Component Services >> Computers >> My Computer >> DCOM Configuration

Solution 2: Re-register the ExplorerFrame.dll file

1] Press Win + R to open the Run window and enter the command cmd. Pressing Enter will open the Command Prompt window.

2] Enter the following command in the window:

regsvr32 ExplorerFrame.dll

Press Enter, run the command and reboot the system. This will help detect damaged operating system files and replace them.

Solution 3: restore default apps

1] Search Predefined app in the Windows 10 search box. Click the default applications icon.



2] On the right side, click Restart.

Solution 4: Run System File Checker to replace the corrupted ExplorerFrame.dll file

In case your system ExplorerFrame.dll The file is damaged by itself, the above solution would not work. In this case, we could try an SFC scan.


1] Open the command prompt as suggested in the previous solution.

2] Type the command sfc / scannow and press Enter.


System File Checker is a utility integrated with the Windows Resource Protection concept. Since the protected files on the system should not be changed, the system checks for any changes and reverts the changes, if any. Please read more about it here.

Solution 4: Start the Internet Explorer ETW Collector Service

1] Open the Run window as suggested in the previous solutions.

2] Find the file Collector ETW di Internet Explorer Service. Since the services are listed alphabetically, it wouldn't be difficult.

3] Right-click on it and then click Start. It would start the service.

I hope this helps!

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