why do you insist on leaving your books all over the floor.

不行，over表示范围，并且all over是固定短语：
all over [简明英汉词典]
adv.全部结束, 到处, 浑身, <口>完全象

why do you insist on leaving all your books on the floor? 这样可以

这里的意思是"到处都是"
给你举例:
don't do that!! you're dropping the drink all over the sheet!
经常有抱怨的意思