The chief procurement officer often ensures that goods and services are promptly delivered. They may be responsible for making sure vendors are paid in a timely manner. A CPO's focus generally is on supply management, whether it is in an office, manufacturing, or retail setting.
MRT.exe is the Windows Malicious Software Removal Tool. It scans for malicious files like viruses in the background and is updating itself every patch day (second Tuesday in a month).
Taskhost.exe is a generic process that acts as a host for processes that run from dynamic link libraries (dll) instead of exe. The process checks the Windows Registry on startup to discover dll-based services that need to be loaded.