If you want to delete a shared device on your Mac, there are a few different ways to go about it. The first way is to use the Sharing preferences in System Preferences. To open the Sharing preferences, click on the Apple icon in the menu bar and select System Preferences. Click on the Sharing tab and select the devices you want to share. Select the users or groups you want to share with and click on Share. Select Delete from the pop-up menu and confirm by clicking on OK. ..