The "security device not found" error is infuriating but almost always solvable. By methodically working through physical connections, driver stacks, Windows services, and security permissions, you will have your software updater recognizing the dongle and completing the license check. Patience and a systematic approach are your best tools—along with a backup dongle, if your vendor offers one.
Reproduce & observe
Fixing “Security Device Not Found – Please Attach Your Dongle and Restart the Software Updater” The "security device not found" error is infuriating