Why blue screen appears when tried to run connectify.me on Windows 7

I am using windows 7 ultimate pre reactivated product in my laptop (Dell Vostro 1015). I wanted to make my laptop as a WiFi hotspot device that's why I download connectify.me software.When I run it to install its notify me that it will run better only windows 7 service pack 3. Then I activate windows update option and made to service pack 3. Then when I run that connectify.me program it appears a blue screen and system goes for restart. Every time when I try to run connectify its appears a blue screen then system go for automatically restart and it happens continuously until I setup a new copy of windows. I have tried several times to run and it happens same things until I setup new copy of windows on my laptop.
What was the problems, in my windows copy or in the connectify.me program
