For vCenter Plug-in 2.5 or later, you must manually remove files from vCenter Server.
C:\Program Files\VMware\vCenter Server\vmon>.\vmon-cli --stop vsphere-client
C:\Program Files\VMware\vCenter Server\vmon>.\vmon-cli --stop vsphere-client C:\Program Files\VMware\vCenter Server\vmon>.\vmon-cli --stop vsphere-ui
service control --stop vsphere-client
service control --stop vsphere-client service-control --stop vsphere-ui
find / -name "*solidfire*" -exec rm -rf {} \;
C:\Program Files\VMware\vCenter Server\vmon>.\vmon-cli --start vsphere-client
C:\Program Files\VMware\vCenter Server\vmon>.\vmon-cli --start vsphere-client C:\Program Files\VMware\vCenter Server\vmon>.\vmon-cli --start vsphere-ui
service control --start vsphere-client
service control --start vsphere-client service-control --start vsphere-ui