Recently became aware of option to back up files via File history. Turned it on.
My novice questions are:
1. If I have my backup drive connected, is there a real-time backup as I work on my computer over the day? Or is it better to just connect backup drive, say, at the end of the day?
Part of setting up File History is selecting how often it should check if a file has changed before backing it up. If memory serves, the default is hourly (1 Hour), which is too frequent for me but for some it would be ideal. I set mine to "Daily."
If you have no reason to disconnect your drive it's fine to leave it connected 24/7, though some say not to if you're worried about ransomware. For myself, I connect it every once in a while, particularly if I know I've uploaded photos or been working on documents during the day that I definitely want to have backed up.
Also be sure to check the retention period, which is "Forever" by default. That's overkill for me, as I've never been interested in a version of a file over 3 months old in all the time I've been using a computer. I've set my retention period to 3 months, which I think is the minimum.
2. With File History turned on, does it save to ANY backup drive that is connected?? Or can you designate a specific backup/flash drive for backup and it will ignore others?
You must define a specific drive (or drives) as File History drives. I tend to intentionally reassign the drive letter to something way up the alphabet for the drive I want to use so that it's very easy to distinguish from things like USB jump drives, SD cards, etc., that you pop in and out at random and tend to get F, G, H, etc., assigned as their drive letters.