Change Site Collection Administrators

We are writing about to “how to change site collection Administrator “As site collection administrators, these users receive any quota or auto-deletion notices and have full control over all content in the site collection

1. Open Central Admin> Application Management

2. If the site collection to which you want to add an administrator is listed, select the URL of the site collection, and then click OK. If the site collection is not listed, click the arrow next to the web application name, click Change Web Application, select the name of the web application that contains the site collection, select the URL of the site collection, and then click OK.Click on Change Collection Administrator under Site collection

3. In the Primary site collection administrator or Secondary site collection administrator area, either type the name of the user whom you want to add by using the format <domain>\<username> or select the user by using the address book.

4. Click OK.