I live this every week. I regularly get calls from my dad about a phone, computer or tablet that is not working right. When I address it, it is always either he is using it incorrectly or we can't reproduce the error a second time--which usually means he wasn't using it correctly.
One thing that has helped is getting him better with voice instructions on his iPhone and Amazon tablet. When he messes up the device by clicking on something, he doesn't know where to tap to fix it but he can tell it to do so verbally. That has reduced the amount of tech support calls.
I also have Team Viewer installed and set up so I can just remote into their computer. I had to delete the shortcuts for Edge (and IE when it was there) because they are more likely to download a searchbar or something than they are with Firefox.
One thing that has helped is getting him better with voice instructions on his iPhone and Amazon tablet. When he messes up the device by clicking on something, he doesn't know where to tap to fix it but he can tell it to do so verbally. That has reduced the amount of tech support calls.
I also have Team Viewer installed and set up so I can just remote into their computer. I had to delete the shortcuts for Edge (and IE when it was there) because they are more likely to download a searchbar or something than they are with Firefox.