I had this exact same problem as the post describes. VM’s were laggy and cpu was at 100%, the culprit was “TiWorker.exe” , which is auto maintenance, not some nasty malware bug… But a ‘feature’ in Server 2012 and R2.

I went one stop further and added a command to use a text document which contained a list of server names, so I could disable on all the necessary servers – I’ll add that to the post if i find it:

Disable automatic maintenance with PSEXEC