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Today, I got into big trouble with vShield Zones where I need to remove them from ESX host. Generally, it would be done by using vCenter. In my case, I don’t have enough resources in another ESX host where I need to bring the ESX1 for maintenance mode in order to remove the vShield Service. Finally, I end up with using service console command to remove vShield service from ESX host. # esxupdate query -------------Bulletin ID------------- -----Installed----- -----------------Summary------------------ ESX400-Update01 2010-01-29T11:28:45 VMware ESX 4.0 Complete Update 1 VSZ200_vshield-dvfilter-module_285928 2010-10-04T09:49:17 Dvfilter fastpath module for vShield Zones   # esxupdate remove -b VSZ200_vshield-dvfilter-module_285928 Removing vshield-dvfilter-module #################################################################### [100%] Running [/usr/sbin/vmkmod-install.sh]... ok. # esxupdate query To verify the vShieldZone is presented or not. Then, reboot the ESX