Access to mapped drives on a Windows 2008 R2 server stop working. When checked the server the LanmanServer service was in a stopped state and in the System events the following was stated: "The Server service depends on the following service: SamSS. This service might not be installed". Attemps to reinitiate the service fails. SamSS is not presents in the services panel. Other noted detail is that the "SamSS" subkey is not present in the "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\". Everything aims to the fact that SamSS service for some reason is not installed. Remote Desktop Access to the server still works. I checked on other working server, HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SamSS key exist. Could I try to export this key from and import it to the not working server?. Any help to get the mapped drives working again will be appreciated.