Eu descobri que a resposta é registrar novamente os escritores vss usando o seguinte arquivo em lote neste servidor em particular.
net stop "Serviço de notificação de eventos do sistema"
net stop "Serviço de Transferência Inteligente em Segundo Plano"
net stop "sistema de eventos COM +"
net stop "Provedor de cópias de sombra de software da Microsoft"
net stop "Volume Shadow Copy"
cd / d% windir% \ system32
net stop vss
net stop swprv
regsvr32 / s ATL.DLL
regsvr32 / s comsvcs.DLL
regsvr32 / s credui.DLL
regsvr32 / s CRYPTNET.DLL
regsvr32 / s CRYPTUI.DLL
regsvr32 / s dhcpqec.DLL
regsvr32 / s dssenh.DLL
regsvr32 / s eapqec.dll
regsvr32 / s esscli.DLL
regsvr32 / s FastProx.DLL
regsvr32 / s FirewallAPI.DLL
regsvr32 / s kmsvc.DLL
regsvr32 / s lsmproxy.DLL
regsvr32 / s MSCTF.DLL
regsvr32 / s msi.DLL
regsvr32 / s msxml3.DLL
regsvr32 / s ncprov.DLL
regsvr32 / s ole32.DLL
regsvr32 / s OLEACC.DLL
regsvr32 / s OLEAUT32.DLL
regsvr32 / s PROPSYS.DLL
regsvr32 / s QAgent.DLL
regsvr32 / s qagentrt.DLL
regsvr32 / s QUtil.DLL
regsvr32 / s raschap.DLL
regsvr32 / s RASQEC.DLL
regsvr32 / s rastls.DLL
regsvr32 / s repdrvfs.DLL
regsvr32 / s RPCRT4.DLL
regsvr32 / s rsaenh.DLL
regsvr32 / s SHELL32.DLL
shsvcs.DLL regsvr32 / s
regsvr32 / s / i swprv.DLL
regsvr32 / s tschannel.DLL
regsvr32 / s USERENV.DLL
regsvr32 / s vss_ps.DLL
regsvr32 / s wbemcons.DLL
regsvr32 / s wbemcore.DLL
regsvr32 / s wbemess.DLL
regsvr32 / s wbemsvc.DLL
regsvr32 / s WINHTTP.DLL
regsvr32 / s WINTRUST.DLL
regsvr32 / s wmiprvsd.DLL
regsvr32 / s wmisvc.DLL
regsvr32 / s wmiutils.DLL
regsvr32 / s wuaueng.DLL
sfc /SCANFILE=%windir%\system32\catsrv.DLL
sfc /SCANFILE=%windir%\system32\catsrvut.DLL
sfc /SCANFILE=%windir%\system32\CLBCatQ.DLL
net start "COM + Event System"
net start "System Event Notification Service"
net start "Serviço de Transferência Inteligente em Segundo Plano"
net start "Provedor de cópias de sombra de software da Microsoft"
net start "Cópia de Sombra de Volume"