storage problems on MacBook Air
My MacBook Air tells me I am running low on storage. When I try to clear memory it says 166 of the 251 gb is stored in "system." I am unable to access "system" to see what is taking up the memory and ultimately delete unneeded stuff (see second picture, "system" is not selectable and I have tried clicking on it). How do I access this and delete unnecessary stuff? I will attach two screen shots of what I am referencing.