Because X-Force modifies system memory to allow the activation, antivirus software often flags it as a "False Positive" or a "Trojan." If you are using this tool, most users find it necessary to temporarily disable Windows Defender or their antivirus suite during the activation process.
While this sounds simple, it required the user to disable internet connections, edit the system's "hosts" file to block Autodesk from "phoning home," and run the software in a way that was never intended by the developers.