How to access Microsoft Management Console in Windows 10 and create Certificate snap-in?

It is not difficult to create a certificate snap-in in Windows 10. Just follow the steps in this step-by-step procedure. The screenshots are self-explanatory but a few comments have been added. You can use a certificate snap-in for the following accounts, Computer Account, My User account, or Service account.

Invoking the Microsoft Management Console.

Just type in MMC in the windows search at the bottom of the desktop and use the Run Command as shown.

Or you can invoke the RUN command and type 'mmc' in it.

Yet another way you may invoke is by typing in 'certmgr.msc' in the Search box as shown.

Adding a snap-in.

In the File menu item choose Add/Remove snap-in as shown.

The Add/Remove snap-in windows get displayed. There are many items you can add as a snap-in. Observe that 'Certificates' is one of the snap-ins you can add. 

Adding the snap-in is easy. Observe the 'ADD' button between the two boxes in the above figure. Highlight Certificate in the left box and click ADD.

A new window opens asking you to choose from 3 of the options for which certificates can be added as shown.

Choosing 'My User Account' brings up this image.

Click 'Finish' adds the Certificate 'Current User'.

Now click OK. The various items related to the certificates of the Current User are displayed as shown.

The current user of this computer has the following certificates as shown.

From here explore for yourself the different items of the current user to learn about them.

Good luck