Verify that the protected computer %PSServerName; is not running an unsupported version of the operating system. 2) Consider ...

1) Verify that the protected computer %PSServerName; is not running an unsupported version of the operating system.
2) Consider restarting the computer %PSServerName;. If the problem persists, uninstall the Microsoft System Center Data Protection Manager 2010 Protection Agent by using Add or Remove Programs on %PSServerName;. Then, on the Agents tab of the Management task area, reinstall the protection agent on %PSServerName;.