As user1686 says, "Potentially unwanted behavior" doesn't necessarily mean your system has been infected by actual malware. It just means that your malware scanner found an application that the scanner's developers determine might do something you (or they) don't want - there have been incidents where a given scanner reports just a competing product as a "potential threat".
The easiest way to interpret what a detection means is simply searching on the internet. That will help you determine whether the detection might be an actual threat.
To answer your question:
If you have a reason to believe your system has been infected you should always by default scan every other system in the same network, especially your work computer. If you have an actual infection your employer won't appreciate, if it starts spreading in their network.
False detections are also a thing, and every scanner is prone to them, some more, some less. So it's a good idea to get a second opinion. I.e. test the system using another scanner. Just about every major manufacturer offers an online scanner.
Resetting or clean reinstall of Windows would remove any threat, but it's a heavy-handed operation. It's the last resort to use if any and all other malware removal methods have failed.