Antivirus companies are going beyond detecting viruses and malware and into categories of "potentially unwanted programs" they feel you may not want even though they aren't dangerous.
Note that it is not our clients themselves that are flagged under either category, but occasionally our partner install offers that are flagged in this "potentially unwanted program" category.
Please note that absolutely nothing is installed on your system without your consent during the installation. We suggest
1) rejecting any partner offers you don't want installed on uTorrent
2) adding an exception or temporarily disabling the antivirus software until you have completed your installation