Sketchup make 2015 (W7-64b) stops nearly each 10 mn

Your Plugins list was not exhaustive.
SUSOLID” is a known culprit - it has badly formed observers which clash with AutoSave…
Do you have it installed ?
Its author said over a week ago that he was fixing it, but nothing yet…
So either don’t have that Plugin load, or don’t enable AutoSave !
See here: