If you do not use Microsoft Office at all and this file persists, you are almost certainly dealing with malware. In that case, consider a full system reset or use Windows Defender Offline Scan before the infection spreads.
A: Yes, you can right-click and select "End task." However, if Office is in the middle of an update, you may corrupt your installation. Only end it if the process is frozen for over an hour. setupprodoffscrubexe
Here is a write-up detailing what the tool is, why it is used, and how to use it. If you do not use Microsoft Office at