Workout Suppression

To remove from the watch best way I have found is to access the device drive from a PC or Mac.

To remove from GC then I use the web site to do so.

I generally leave them on GC app/site so I have them if needed for later and just remove from device

I'm using a translator, I don't understand what you're saying, sorry.

When you say workouts , do you mean your recorded activities or workouts that you have created?

I connect my watch to the PC/MAc and then look at the drive on the watch from the PC/Mac and delete workouts there

The activities carried out

Which app are you using? On Connect and Express I don't see anything.

So you want to delete all your activities from the watch at once.

Its not an app, are you using a Mac or a PC?

PC Windows 10.

If you connect your watch via the cable to the PC, you should see it as a drive in the file explorer.

I generally make a copy of it before changing anything. You can just make a copy as you do with any other folder and save it somewhere on the computer hard drive. This is also very useful if you have to reset the device at some stage as you can get activity screen settings copied back. (see link below)

Then you go to the correct subfolder (Activity) on the device drive (in file explorer) and delete the activities there. 

This should delete the activities from the watch to give more space. It wont delete from Garmin Connect or Website if you do this, only on the watch.

Then unplug watch and do a soft reset (hold in light button until the watch shuts down completely, then restart after say 15 seconds)

I hope that helps. I am not sure what you are trying to achieve , other than making space on the device?

This link for interest:

https://forums.garmin.com/sports-fitness/running-multisport/f/forerunner-955-series/329526/some-advice-before-upgrading-replacing-a-watch-or-a-hard-reset

I finally get it! Given the size of the folder (10 MB), I'll wait to delete. Many thanks for the help.