Win 8.1 x 64 SkyDrive synchronization


Extraordinary Member
I read an article about the above topic and tried to figure this out with Google etc. unsuccessfully.
I went to PC Settings>SkyDrive>Synch and there were 10 items checked on. I really don't understand which should be on or off.
I don't really trust the cloud but have used SkyDrive before for videos which was barely satisfactory.
My question is, should I leave them all on by default or are there any which could compromise my documents etc.?
Thank you

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