How to stop windows shutdown process caused by viruses or malware

Some viruses and malware programs try to turn your computer off while you are working on it and give you a message saying that your computer will shut down after 30 second and you can't save what you were doing ,so you should quickly stop the shutdown process to save your work just do the following:

-From start menu choose RUN

-Write "shutdown -a" that means abort shutdown ,then click OK and that will stop the computer shutdown operation .

There are some useful commands that you should know:

-"shutdown" or "shutdown -i" will make the windows log off

-" shutdown -r" means restart.

-" shutdown -f " means turn computer off .

-" shutdown -t xx" that means turn of the computer after xx seconds, and this is the method that some viruses   use to shutdown the computer.

-" shutdown -c (message) " this will enable you to give a message to the user when the windows shutdown, write the message between (    ) and it shouldn't contain more than 127 characters.