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).
So, I've been having a malware problem, and I found the file mrtstub.exe, and of course I search for it on the internet and a site says that it is malware and to remove it. So, I did. When I first tried to run the MS Removal Tool, it said that it could not run and something about mrtstub.exe.