A.Verify that the VMware Directory service can stop by manually restarting it.
B.Verifythat the vCenter Single Sign-On service can stop by manually restarting it.
C.Uninstall vCenter Single Sign-On service.
D.Uninstall the VMware Directory service.
To verify that the Vmware Directory Service is in a stable state and can stop, manually restart it.
The Vmware Directory service must stopped for the vCenter Server upgrade software to uninstall
vCenter Single Sign-On during the upgrade process.