We have had posts in these forums where members have used such 'driver update' utilities and they have ended up with unworkable systems.
What you are doing voluntarily is great, and I am sure your family and friends appreciate the help, but I just wonder if it is so necessary so often.
There's an old maxim, "if it ain't broke, don't fix it", (sorry, ain't is quaint old English for isn't). It applies to driver updates as well. If a system is working well, why does it need driver updates? If it is not working well then if there is a specific need for an updated driver, (because the old driver is faulty), then we download and install just the one specific driver file and install that, otherwise we diagnose the problem and fix it in other ways.
One thing I can safely say is that we never use Windows own driver update checker to check for updates. Windows doesn't do that very well. But as to the others, RadarSync was known to cause problems some time ago and I have heard nothing that suggests it is any better now.
The hard way is usually best. If the problem is driver based, find the updated driver yourself and install it.
Sorry, I don't mean to be dismissive, I just think that you are creating a lot of unnecessary work for yourself.
I am looking for a driver update utility that I could recommend to some poeple I am helping. The thing is, I am giving support free to many friends, family and such but, with that many, I would have to spend most of my time doing a round to update everyone has none of them can hold on and not fall in the abyss when I explain them how, where and why to keep their drivers updated.
I have given Driver Genius Pro a go and found it to do a good job so far but, I have searched a bit and found there are a lot of those out there (radarSync, DriverDoctor, DriverMax, Drivercure etc...) so, I would like to have recommendation from you peeps.