solidworks crashes on windows 8.1

Hello, I am a student user of Solidworks and I have just bought  new laptop to use this program.

The problem is that Solidworks (2014-2015 student edition) is slow and it crashes after a while.

The specs of my laptop are:

cpu i7-5500u

ram 16 gb

windows 8.1

How can I solve this problem?

SolidworksGeneral