… hang up the whole CIS application interface. Must shut down/restart to gain access again.
I read it again, but… didnt help
Make sure there are no left overs of previously installed security program around. Try using removal tools for those programs. Here is a list of removal tools for common av programs: ESET Knowledgebase .
If you have other security program(s) running in the background see if disabling them makes the problem go away.
Thank you very much!