A lot of people are wondering why they appear as “Sharepoint System” (SHAREPOINTSystem) in SharePoint instead of their user account info. This is not as complicated as it seems. If you are displayed as SHAREPOINT\System,
it means you are logged in using the same account specified as the application pool identity during the creation of the web application. In addition, this should also generate a number of errors when browsing the web application. that you are signed in with an account that has been granted the “Account operates as System” policy on web application permissions. This is automatically applied to most service/application pool accounts. As per the description of the policy, system accounts will not be recorded in the user information lists, unless the account is directly added to the permissions of the site. Any changes made by a system account will be recorded as made by the system instead of the actual user account.