Many Windows users face Class Not Registered errors on their Windows 10 computers. This error can cause various problems with your computer system. Moreover, it can prevent you from opening any app or program on your computer.

It is usually caused due to the app or program with unregistered DLL files. So, whenever you try to open a specific app or program, the Windows 10 Class not registered error appears. Also, this error only affects Windows 10 users.

So if you are facing issues opening your programs like Internet Explorer, Start menu, Cortana, windows media explorer, and others, this article will surely help you.

Fix Windows 10 Major Issues

These are the best ways to fix almost any critical issue in your Windows 10 system. However, you may have identified the one that best meets your 10 issues Of course, many premium and free tools address various Windows issues, including corruption, data loss, and the like. However, no matter how many tools you use, Windows will occasionally stop working as it should. In such cases, we recommend more powerful options, such as Windows Restore or Factory Reset.

See Also: 7 Ways To Fix Windows 10 Random Restart Error

How to Fix Class Not Registered Error In Windows 10

In this article, 10 possible solutions will solve your problem in a short span of time. So look at them and try these methods if you also become a victim of class not registered error.

Method 1: Disable iCloud by using Task Manager

The class not registered error might be caused due to iCloud. Disabling iCloud to rectify the error is a straightforward method to follow, so if you have installed iCloud on your Windows 10 computer, follow the steps to close it, as many users have accepted that this method fixes the error:

  1. At First, press ctrl+ shift +esc simultaneously on your keyboard. It will launch the Task Manager.task manager files
  2. Look for iCloud when the Task Manager window is displayed on the icloud services

Afterward, right-click on iCloud services now when it is located. A menu will appear on the screen. Select End Task to Disable.

Finally, open the apps to check if they are working.

See Also: Fix Not Enough Storage is Available to Process This Command

Method 2: Reset Windows 10 apps

To rectify the class not registered error:

  1. At First, type Powershell in the search box and right-click on it, and then select Run as administrator.powershell in search bar
  2. Then type Get-AppXPackage | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register
    “$($-.InstallLocation)\AppXManifest.xml “} and then hit Enter.package app list

Restart your computer after it Re- registers your Windows apps.

Method 3: Run DISM

  1. First, press Windows + X and then select Command Prompt.command prompt app
  2. Type DISM /Online /Cleanup-Image /CheckHealth and DISM /Online /Cleanup-Image/RestoreHealth. Press Enter.dism online cleanup

Finally, restart your system.

See Also: Windows 10 100% Disk Usage in Task Manager

Method 4: Run SFC

To run the System File Checker program:

  1. First, press the Windows key + X and then select Command Prompt (Admin).prompt admin
  2. Then type sfc/ scannow in the prompt and press enter.type sfc scan

Finally, reboot your computer system after the process is finished.

See Also: System Service Exception Error in Windows 10

Method 5: Remove Microsoft as the Default Browser

1. At First, go to Control Panel>Programs>Default Programs>Set Default Programs.default programs set

2. Then change Microsoft Edge to Internet Explorer or Google Chrome.edge and internet explorer

Restart your computer to check if the explorer.exe class not registered error is resolved.

Method 6: Start Internet Explorer ETW Collector Service

Class not registered error usually affects Internet Explorer and Microsoft Edge, so follow the steps if you face this error.

1. At First, press Windows + R and type services.msc, and press Enter. Then, window services will open services

2. Find Internet Explorer ETW Collector Service in the list and then Right click on it and select the Properties option.files properties

Change the start-up to Automatic. Right-click on it again and select Start.

Once done, the problem will be solved in your system.

Method 7: Re-Register Windows.dll files

To re-register Windows files on your computer:

  1. First, press Windows + X and select Command Prompt (Admin).admin command prompt microsoft
  2. Then type FOR / R C : \ %G IN (*.dll ) DO “%systemroot%\system32\regsvr32.exe” / s “%G” and hit Enter.admin cmd exeThis command will search for all dll files and re-register them with the regsvr command. Finally, reboot your system now.

Method 8: Change the Default Image Viewer to a Windows Photo Viewer

A class, not registered error can occur while you try to look for .jpg files. So if this happens, set your default image viewer to Windows Photo Viewer by following the given steps:

  1. Download and run a .reg file to change your registry and enable Windows Photo Viewer on your system. Or, if you don’t want to change your registries, download any free image-viewing software and install it on your photo viewer enable
  2. Right-click on any picture that is there on your computer. Choose Open with > Choose another app from the menu bar.choose another app Click Yes to register any of the components. Then Restart your system and open the apps or programs causing trouble.

Method 9: Create a New Microsoft Account

If the other ways do not work to fix the Class not registered error, you can create a new Microsoft account on Windows 10. So follow the steps:

  1. Go to the Settings app by pressing Windows + I and selecting Change PC settings.change pc setting
  2. When the settings app opens, click on the Accounts section. On the left side of the menu, choose the Family and other people option and click on Add someone Else on this PC.add someone else to this pcSign in now by entering your Microsoft account e-mail id and clicking on Next. Log out of your current account and use the new one.


Why does my Internet Explorer indicate that the 'class is not registered' issue?

The error 'Class not registered' on Windows is typically brought on by corrupted files in the application you're attempting to open. The files inside Internet Explorer are the main cause of this problem. However, your hard drive corruption or operating system file corruption are also major contributing factors for the class not registered issue.

What does 'Class not registered' on my PC mean?

The 'Class Not Registered' issue is among Windows 10's frequently occurring faults. Utilizing software or a program that contains unregistered DLL files will result in such class registration errors. Unregistered DLL files can cause problems for the application, which could prevent you from utilizing it effectively and might to application failure.

Can we register a DLL file in Windows 10?

At the command prompt, type REGSVR32 ‘PATH TO THE DLL FILE’ or choose Start > All Programs > Accessories and then right-click on ‘Command Prompt.’ You can also put CMD in the search box and then click on cmd.exe when it comes to your results. However, the DLL file will not be registered if the files are corrupted or have invalid extensions.

How to factory reset the fix registry in Windows 10?

Yes, resetting repairs the registry in Windows 10. Still, all it does is reset everything to its default settings and open a new window. It does nothing more than save your data. Additionally, you can repair your registry using software and a manual Windows command.

How do you fix a package that Windows 10 couldn't register?

Firstly run the Windows Store App, Troubleshooter. Next, to troubleshoot, select Start > Settings > Update & Security. Once done, run the troubleshooter after selecting Windows Store Apps from the scroll-down menu. If issues were discovered and resolved, you would be informed. The package may be corrupted if the system fails to resolve the issue.


The primary reason for the “Class not registered” issue is the unregistered DLL files in your Windows 10 system. Many users have faced a similar problem on their desktops. However, you can quickly resolve it by following the solutions mentioned above. All these solutions have been tried and tested, and your issue will be resolved. If none of the solutions works for you and the issue persists, then you can contact the support team of Windows and their guidance to solve this problem. 

See Also: {Solved} 10 Ways To Fix Windows Error Code 0x80070570


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