csrutil disable
In the terminal, and run the following two commands:
sudo mount -uw /
sudo mkdir /System/Library/LaunchAgentsDisabled; sudo mkdir /System/Library/LaunchDaemonsDisabled;
sudo mv /System/Library/LaunchAgents/com.apple.ManagedClientAgent.agent.plist /System/Library/LaunchAgentsDisabled;
sudo mv /System/Library/LaunchAgents/com.apple.ManagedClientAgent.enrollagent.plist /System/Library/LaunchAgentsDisabled;
sudo mv /System/Library/LaunchDaemons/com.apple.ManagedClient.cloudconfigurationd.plist /System/Library/LaunchDaemonsDisabled;
sudo mv /System/Library/LaunchDaemons/com.apple.ManagedClient.enroll.plist /System/Library/LaunchDaemonsDisabled;
sudo mv /System/Library/LaunchDaemons/com.apple.ManagedClient.plist /System/Library/LaunchDaemonsDisabled;
sudo mv /System/Library/LaunchDaemons/com.apple.ManagedClient.startup.plist /System/Library/LaunchDaemonsDisabled
csrutil enable
I can't find the bckp folders that I create. I think they were remove after installing update. So I decide to make a clear install, and everything is ok