Hi All. I have a Garmin Forerunner 25 that shows the same behavior under Win7 + 10 + Linux: Win shows the disk drive letter but tells me to format the disk. Under Linux I can see the disk but it seems to be raw - should be formated.
Under Windows I reinstalled all USB-drivers but nothing changed. Under Win + Linux I connected the Forerunner to every USB 2/3 ports without any result.
I think its a Garmin issue. Do you have any suggestions? Thanks a lot in advance.
I have forerunner 35 that have had the same issue for 8 days now.
Found this thread: https://forums.garmin.com/sports-fitness/running-multisport/f/forerunner-230-235/116492/you-need-to-format-the-disk-in-drive-e and it looks like it could be a Windows driver issue. Hope Garmin fixes this soon.