I have removed all the Dell software from the laptop and from that time on blue screens do not appear anymore.  This is really not a joke.
I usually put laptops to sleep in order to be able to wake them up as quickly as possible.Until Inspiron 3793 I had no problem doing so on all computers I had until now. When waking up Inspiron 3793 it sometimes results into a blue screen. This happens maybe once in a month when waking computer 5 times in one day. I have tried all the instructions on the web in order to solve the issue but nothing helped.I am convinced it is a fault in Inspiron 3793 series. I had many notebooks in my life and newer had such problems.It is stupid that users are taking actions in order to solve such issues – it is just loosing time and nerves. I am waiting for a solution for this problem and I want to install the solution from your support page and with one click.  
Inspiron 3793 blue screen when waking from sleep