Games are not running

I had 1.5GB graphics card inbuilt in my dell inspirionn5110.
because of some problem I had send my laptop to workshop(not dell) and now when I get back my laptop I download watch dogs and after 1st screen my laptop gets off I check on Can You RUN It | Can I run that game | Game system requirements for watch dogs and it says my system is not compatible with this game minimum requirement, then when I play my dmc5 which is used to run very smoothly previously, my system off immediately after 1st screen.

I updated my nvidia graphic driver and check my graphics properties it is 1.5gb .
Anyone here knows how to solve this issue ?

btw:-> I'm using Windows 8.1 update 1


intel
http://i.imgur.com/X09GG6R.png
http://i.imgur.com/jfAzoOb.jpg

nvidia

http://i.imgur.com/z8djmp6.jpg
http://i.imgur.com/sCLrO1s.jpg

cpu

http://i.imgur.com/IXFeRLN.jpg

When I start mining from GPU then also my laptop goes off straight.