Approach 1
- Go to Central Administration.
- Click "Security" tab on the Quick Launch bar.
- Under General settings, select "Configure Service Accounts".
It will take you to the Farm Credential Management page and there, you can see the Farm Account ID or you can paste the following URL directly to go to the respective page.
http://servername:port/_admin/FarmCredentialManagement.aspx
Approach 2
SharePoint will run on top of the timer service to execute all the functionality on time and correctly so that the timer service will run only with the Farm Administrator account.
- Open "Run" and type services.msc.
- It will populate the service panel. Search for SharePoint Timer Service.
- And there, you can see the Farm Administrator account ID
Approach 3
We can do all the administrative tasks using the Sharepoint Management Shell. So, we can easily identify the SharePoint Farm Administrator ID by a few lines of commands.
- $farmadmin = Get-SPFarm
- $farmadmin.DefaultServiceAccount
Yet another approach is - if you have access to the Active Directory users and computers, then search for the WSS_Admin_WPG Group and right-click to go to the properties. Click the "Members" tab and there, you can see the list of Farm Administrators.