250 / holidays

Really don't like the new OS on my computer - old one
worked fine, now all my slide shows are mixed, without the music
& transitions I'd carefully selected.. as there
are many thousands of photos involved, guess what ..
& why would I want to synchronise all the devices?
Have loads of storage on the computer, & would like to delete
photos off the phone & iPad without losing them on computer. 
It is stormy outside too, though the photo's from another day, at the beach
(Byron Bay) looking towards mount Warning.