MMC was originally released as part of the Windows 98 Resource Kit and is included in all later versions. It uses a Multiple Document Interface (MDI) in an environment similar to Microsoft’s Windows Explorer. MMC is considered to be a container for the actual operations, and is known as a “tools host.” It does not, itself, provide management, but rather a framework in which management tools can operate.

Sometimes, there may be a possibility of a scenario in which some snap-ins may not work properly. Especially, if the registry configuration of a snap-in is broken (note that Registry Editor is not a snap-in), the snap-in initialization would fail. In this case, you’re likely to get the following error message (a specific message in case of Event Viewer): MMC could not create the snap-in. The snap-in might not have been installed correctly.

How To Fix MMC Could Not Create The Snap-in

Before moving forward make sure to create a system restore point. Just in case something goes wrong, then you would be able to restore your system to this restore point. Now without wasting any time let’s see how to fix MMC Could Not Create The Snap-in error via the following troubleshooting guide:

How To Fix MMC Could Not Create The Snap-in Method 1: Turn on the Microsoft . net Framework Method 2: Run System File Checker Method 3: Registry Fix Method 4: Install Remote Server Administration Tools (RSAT) on Windows 10

Method 1: Turn on the Microsoft .net Framework

  1. Search for the control panel in Windows Search then click on Control Panel from the search result.

  2. From Control Panel click on “Uninstall a program” under Programs. 

  3. Now select “Turn Windows features on or off” from the left-hand menu.

  4. Now select “Microsoft .net Framework 3.5“.  You have to expand each component and check the ones you want to turn on.

  5. Restart the computer and check if the issue is fixed if not then go to the next step.

  6. You may run the system file checker tool once again.

The above method might Fix MMC Could Not Create The Snap-in error but if it doesn’t then follow the next method.

Method 2: Run System File Checker

  1. Press Windows Key + X then click on Command Prompt(Admin).

  2. Now type the following in the cmd and hit enter:

Sfc /scannow

  1. Wait for the above process to finish and once done restart your PC.

  2. Now again open CMD and type the following command one by one and hit enter after each one:

  3. Let the DISM command run and wait for it to finish.

  4. If the above command doesn’t work then try on the below:

Note: Replace the C:\RepairSource\Windows with the location of your repair source (Windows Installation or Recovery Disc).

  1. Reboot your PC to save changes and see if you’re able to fix MMC Could Not Create The Snap-in error.

Method 3: Registry Fix

  1. Press Windows + R key simultaneously and type regedit in the Run dialog box to open Registry Editor.

NOTE: Before manipulating the registry, you should make a backup of the Registry.

  1. Inside Registry Editor navigate to the following key:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MMC\SnapIns

  1. Inside SnapIns search for the error number specified in CLSID.

  2. After navigating to the following key, right-click on the FX:{b05566ad-fe9c-4363-be05-7a4cbb7cb510} and select Export. This will let you back up the Registry key into a .reg file. Next, right-click on the same key, and this time select Delete.

  3. Finally, in the confirmation box, select Yes to delete the registry key. Close the Registry Editor and reboot your system.

After restarting the machine, Windows would automatically generate the required registry configuration for the Event Manager and this solves the problem. So you can open Event Viewer and find it works as expected:

Method 4: Install Remote Server Administration Tools (RSAT) on Windows 10

If nothing fixes the issue then you can use RSAT as an alternative to MMC on Windows 10. RSAT is a very useful tool developed by Microsoft which is used to manage Windows Server’s present in the remote location.  Basically, there is MMC snap-in “Active Directory Users and Computers” in the tool, which enables the user to do changes and manage the remote server. MMC snap-in is like an add-on to the module. This tool is helpful to add new users and reset the password to the organizational unit. Let’s see how to Install RSAT on Windows 10.

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If you are still getting the Snap-in error you might have to fix by reinstalling MMC:

Comments are welcomed if you still have any doubt or question regarding How to fix MMC Could Not Create The Snap-in.