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).
No, that is probably not malware. It could be if it is in an unusual location, but mrtstub.exe is a component of the Microsoft Malicious Software Removal Tool. Right-click the executable, select properties, and check the Digital Signature tab. If it says it is signed by Microsoft Corporation, it is safe.