Don't Sleep is a small portable program to prevent system shutdown,Standby, Hibernate, Turn Off and Restart. Especially when old Programs run on Windows-7 or Windows Vista.
Here's more aggressive power-saving features with new rules.But not only that, it also prevents logging off the computer, and the Deactivation of the monitor oractivation of the screen saver.
Of course you can also manually disable all the options and then activate
again, but with Don't Sleep one can save now many hand moves and also
save time! And it's easier than ever.
Apart from the fact Don't Sleep has a timer that allows time control
unblock, or shutdown the computer for a specified time.
Don't Sleep does not have to be installed and can be executed easily
from the desktop, and can be carried on a small usb-stick or other
memory device.
So why don't you try this small but effective utility yourself. Just download this from the below link and if you face any problem then comment below.
http://www.softpedia.com/get/System/Launchers-Shutdown-Tools/Don-t-Sleep.shtml