Microsoft processes and Symantec Endpoint Protection Master Service (ccsvchst.exe) will not start, Internet Explorer and Chrome browsers crash.
Symantec Endpoint Protection 12.1.x
Beyond Trust Power Broker 6.0
On August 23, 2016, an update to the Intrusion Prevention component of Symantec Endpoint Protection enabled additional application hooks intended to improve efficacy and protection. Older versions of the BeyondTrust PowerBroker software are overwriting these hooks with their own process hooks. The side effect of this conflict is that SEP client processes and other 3rd party processes may unexpectedly stop or terminate.
New IPS content was released on August 26th, 2016 (20160826.012) to address this concern.
One or more of the following actions may be necessary if an affected client's ccSvcHst.exe process cannot be started: