I have run into a quandry. I am responsible for maintaining a laptop that is owned by an Investor group. The laptop was used in sales previously. It is an HP 2000 running Windows 8.1. When attempting to launch MS Powerpoint 2013, the launch crashes. The machine has a fresh install of Avast! AV and Malwarebytes. Neither of them report any problems. I contacted MS Support and got a fellow on the line that tried to tell me that the machine was hacked based on error logs and the presense of service named csrss. I don't find anything when runnning rkill other than a statement that Windows Defender is not started. I have replaced Display Link per the Windows Support center to no avail. So, I don't think that there is a malware infection unless there is a undectable rootkit present. Any suggestions would be appreciated as to what to check on next.