To fix this issues you got to make use of the Live CD that can be successfully used for the booting of the system that is being currently used by you. And you can also perform the action of blacklisting the drivers that are being done by just performing the actions of the writing of the code that is being given down:
After the blacklisting of the drivers have been done, then you can just follow the steps that are given below, and also this command is said to be used for the opening of the editor that is from blacklist file and then follow up with the two lines of the code that is just being given down:
sudo rmmod iTCO_wdt
sudo rmmod iTCO_vendor_support
sudo gedit /etc/modprobe.d/blacklist
This will help you out for the purpose of the removal of the shutdown of the Laptop that is being used by you, and all the issues will remove out easily.