Modifier l’identité du pool d’applications pour une application Web (Office SharePoint Server)
On the top navigation bar, click Operations.
On the Operations page, in the Security Configuration section, click Service accounts.
On the Service Accounts page, in the Credential Management section, under Select the component to update, select Web application pool.
In the Web service list, click a Web service.
In the Application pool list, click the application pool that you want associated with the Web application.
Under Select an account for this component, select one of the following:
Predefined Select this option to use a predefined account, such as the Network Service account or the Local Service account.
Configurable Select this option to specify a different account.
Click OK.