SW 19 Education Version can't save 2nd file

I use SW 19 education and when I try to save the 2nd part file, it says 

"A sharing violation occurred while accessing C:/User/ROG/.... (and so on). It link to my %temp% files

I've made 1 part and it has no problem saving at all

Quick update: 

It will pop twice then it can be either "Save As" of "Save"

SolidworksGeneral