How to Recover a Service Manager Management Server
You can use the following procedure to reinstall a management server in System Center 2012 – Service Manager.
You must restore the encryption key before starting this procedure. For more information, see How to Restore the Service Manager Encryption Key.
To recover a Service Manager management server
Log on to the computer that will host the new Service Manager management server using an account that has administrator rights.
On the Service Manager installation media, double-click the Setup.exe file.
On the Service Manager Setup Wizard page, click Service Manager management server.
On the Product registration page, type the information in the text boxes. If applicable, click I have read, understood, and agree with the terms of the license agreement, and then click Next.
On the Installation location page, verify that sufficient free disk space is available, and then click Next. If necessary, click Browse to change the location in which you want to install the Service Manager management server.
On the System check results page, make sure that the prerequisite check passed or at least passed with warnings, and then click Next.
On the Configure the Service Manager database page, do the following:
In Database server, type the name of the computer that is hosting the Service Manager database, and then press the TAB key.
Select Use an existing database.
Click the Database list, select the database name for the Service Manager database (the default name is ServiceManager), and then click Next.
On the Configure the Service Manager management group, wait until the Management group name and Management group administrators fields have been populated. Then, click Next.
On the Configure the account for Service Manager services page, click Domain account; specify the user name, password, and domain for the account; and then click Test Credentials. Make sure that you receive the following message: "The credentials were accepted." and then click Next.
On the Help improve System Center page, indicate your preference for participation in both the Customer Experience Improvement Program and Error Reporting. For more information, click Tell me more about the program, and then click Next.
On the Installation summary page, click Install.
On the Setup completed successfully page, click Close.