Today I started a Cumulative Update 3 installation, which is the most recent one on ConfigMgr 2012 R2. As always (?) a reboot is needed before installation is started. This will be mentioned in the prerequisites wizard. After reboot however, installation hung on the first step. Stopping services.. This on the Windows Management Instrumentation (WMI) service. Let's have a look how to stop this service manually.
First have a look in the Services console for the service name. In this case the service is called WinMgmt. Then open a Command Prompt and type in the following command:
-sc queryex [servicename]
Replace [servicename] with the services registry name.
After running the query the PID is showed, which is 836 in my case. Type in the following command to stop it definitely:
-taskkill /f /pid [PID]
Replace [PID] with the number showed before.
This will forcefully kill the hung service! After that installation can be continued as expected.