Garmin Gpsmap 76csx Software Download

Rehabbing from ankle surgery, I haven't had the chance to take the GPS out for a walk in quite a while. Returning home yesterday I attempted to download a track and the computer wouldn't recognize the device. Garmin customer service had no answer other than switching to Base Camp to download to Garmin's map and format.
I've been fortunate that when we upgraded from Win7 to Win10 eighteen months ago, our I.T. person was able to configure the computer to allow me to use Nat'l Geo maps which are a USGS duplicate.
A friend pointed me to a link that said the 2016 Windows anniversary update made some Garmin devices no longer recognizable as Garmin devices formatted with FAT12,16 or 32 file systems are no longer recognized as mass storage devices. Garmin Express software v4.1.25 may solve the problem but Garmin Express has more up to date versions that seemingly aren't supporting the 60CSX.
Has anyone found a work around? Doug Paul, do you have any suggestions? Thanks to Doug Paul, he found me a second 60CSX that I use as a back up so I'm reluctant to ditch the units for a new one.
Thanks