Specify the SharePoint administrators group

1. Click Start, point to All Programs, point to Administrative Tools, and then click SharePoint Central Administration.
2. In the Security Configuration section, click Set SharePoint administration group.
3. In the Set SharePoint Administrator Group Account section, type the domain user name or group to allow to access to SharePoint Central Administration.
4. Click OK.

Note  You can only assign one domain account as the SharePoint administrators group. To include other members, use a group account and add the additional members to the group account by using User Accounts in Control Panel. You must be logged on as an administrator or a member of the SharePoint Administrator group in order to complete this procedure. If your computer is connected to a network, network policy settings may also prevent you from completing this procedure.To change the assigned group, follow the steps to specify a group and specify a different domain group. When you specify a new group, the members of the previous group can no longer manage the server or server farm running Microsoft Windows SharePoint Services.