Hi, I'm Robinson, and I’m happy to help you today.
I know how frustrating this may be for you but I'll do my very best to help you.
Is the Garmin ANT stick recognized in the device manager?
1-Unplug the Garmin ANT stick
2-Right-click on the Start then click on Device Manager
3-Connect the Garmin ANT stick and check if is recognized
4-If is recognized right-click and select properties
5-Then click on the Driver tab and the Events tab and check if there is an error message and attach a screenshot of this information.
Another possible solution is to install the software Garmin Express, this software has the newest version of the drivers.
https://www.garmin.com/en-US/software/express/w...
Note: This is a non-Microsoft website. The page appears to be providing accurate, safe information. Watch out for ads on the site that may advertise products frequently classified as a PUP (Potentially Unwanted Products).