"Computer Fun" and I say that sarcastically. I just spent 4 hours restoring processed and organized pictures that suddenly vanished. Some background...
I use a Mac Mini. It is small, but sufficient. And I like the fact that it is solid state and doesn't need a fan. It could use a few more ports, but I I have just barely enough and haven't needed more yet.
I keep my files organized, especially the pictures. IPhotos holds all the full-sized pictures by date. When I crop, filter and resize them for blog use, they go into a new folder (like documents and applications do). I think most people keep their pictures by subject. I take too many to be able to find them that way.
So, in the Photos folder, I set up 6 subfolders" Cats, Family, House, Other, Videos, and Yard. Each of those folders gets a new subfolder each year (2018, for example). Each year folder gets monthly folders (January 2018 is 1801). Daily subfolders when I need one (January 20, 2018 would be 180120). That may or may not seem seriously complicated, but I can navigate to any subject and day in about 5 seconds.
I did spend my career organizing information after all... ;)
Now, also, Mac has an app called "Time Machine". Connected to an external hard drive, it keeps automatic backs of all changes in files and by some program I know NOTHING about, it connects to all past saves so that you can restore individual files, individual folders, individual programs or your entire computer.
And that has saved me more than once for individual files to the whole thing! I LOVE TIME MACHINE!
So I went to add a Flashback Friday post on Marks Mews. I choose them by scrolling through IPhotos It displays dates, and when I find one I want to use, I just go to that date in Photos (IPhotos is an app; Photos is a saved personal folder).
The original full-size picture was in IPhotos but the processed picture I wanted was not in my Photos subfolder. And I discovered that half the pictures in my subfolders from 2016 and earlier were gone! ARRRGGGHHHHH!
I should mention that while Mac computers have strong anti-hacking software built-in, I do use one called MacKeeper to look for adware, malware, useless files, etc. And I was using it frequently the past few days. I made the mistake of trying to download a TV show I wanted a quote from and ended up with a pop-up ads.
I didn't realize how aggressive MacKeeper could be defining "useless files". It allows you to look at the list of files to be deleted, but file names can be difficult to interpret. After reading a dozen and not seeing anything that worried me (most seemed to be if I needed to read something in a foreign language), I went ahead and clicked "OK". It deleted almost a 1,000 files and gave me back about a Gb memory, so I was rather pleased.
Until I discovered a lot of processed pictures missing... Now I'm not saying that MacKeeper did that, just that both things seemed to happen at the same time. Maybe I got hacked at the same time. But I am suspicious of coincidences!
So I went into Time Machine and tried restore individual folders from 2 days ago, iy didn't work. So I looked at the Time Machine backups from a week before and those were blank. I had to go back to August, and there they all were!
Not to get too technical (unless someone has a question), but I had to select specific folders for Cats, Family, House, Other, Video, and Yard one at a time and save one then then go back and do another. and double check because once it didn't restore (probably my fault, but that's why you check).
BUT! They are all back now... The Flashback Fridays post on Marks Mews is proof.
MacKeeper is a good app. It does find adware, some tracking malware, and actually non-essential files. But I will be a LOT more careful in the permissions I allow it in the future, LOL!