Hello,
When do you get the blue screen?
Do you receive any error message along with the blue screen?
Provide us more information about the blue screen system shut down.
What happens when you try to open Word application?
You may start Word application in its safe mode and check if it works as expected.
Press the ‘Windows + R’ key on the keyboard.
In the ‘Run’ window type ‘Winword /safe’ (Without the quotes) and press ‘enter’.
If Word works fine as expected in application safe mode, then disable the add-in(s) by following the steps below and verify the status.
http://office.microsoft.com/en-us/support/why-cant-i-start-my-office-2013-application-HA104011864.aspX
You may also try the troubleshooting steps mentioned in the following article and check if it helps.
http://support.microsoft.com/kb/921541
I hope the above information helps. Let us know if you need further assistance.
Thank you.