Why does my laptop automatically shut down?

[Dell Inc.]

Hello Filipe,

I am from Dell Social Media and Community.

Follow the link below to run a basic hardware test on your system.
http://support.dell.com/support/topics/g...cid=266787

If you get any error code, you can associate it to the list given in the link below.
http://support.dell.com/support/topics/g...&s=gen&cs=

If all the tests pass, follow the link below to fix the OS issue.
http://support.dell.com/support/topics/g...egacy=true

If this has not helped you or if you need any further assistance, feel free to message me on Twitter(@NiranjanatDell). I will be happy to assist.

Dell-Niranjan