When I tried to enable Windows Server Backup Feature to our Windows 2008 R2 SP1 domain server, it failed. The system asked to reboot to rollback changes and from that day Server Manager program informs "Cannot display data until computer is restarted" in roles and features summary. The status error in servermanager.log file is "-2147021879 (80070bc9)".
Is there anybody who knows how to workaround this issue?