The Task Sequence deployment downloads, installs, and reports back success but when you open up Software Center on the client it still shows “Installing”.
It seems that the problem comes from the dependency of CCMexec on SMSTSMgr.
Basically the CCMExec service has to start before the SMSTSMgr service can, and it’s visibly not the case sometimes (it’s reported as a bug by Microsoft).
Hence, using the Client Center tool:
- Delete the CCM WMI repository
- Launch a reparation of the agent.
The status of the task sequence is now “Installed” and the problem should not occur again.