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In addition to the screen sharing, numerous good tools are already mentioned, make sure you have a copy of the same OS available to you as you help. Experiment

In addition to the screen sharing, numerous good tools are already mentioned, make sure you have a copy of the same OS available to you as you help. Experimenting with other people having to do some of the steps (eg elevated permissions) is extremely tedious and far slower than you doing it on your own and then just telling them the correct answer which just magically works as far they are concerned. This also tends to be less stressful for everybody involved. For windows and Android, VMs are the right tool as you can get the exact version right. iDevice VMs are possible but not worth it, a physical device is easiest. Fortunately even fairly old hardware runs the on-the-run OS version. edit: clarity in second sentence

zoomablemind 5y ago
> ...make sure you have a copy of the same OS available to you as you help. Hard to overemphasize this aspect. I would even add this to the localization level, as some menus and even keymaps differences could turn a simple task into madness! Also, have limitless patience and wisdom to postpone some stubborn task for next, hopefully more relaxed time. Better yet set things up in person, if possible ahead of time, to avoid all the unnecessary annoyance. This all assumes the receiving side indeed wants this type of assistance, as too often people in age may prefer to rely upon their time-provem and familiar ways to deal with tasks.