Re-installing the driver might be enough to resolve the issue. You just have to go on the official site to find the same and then you can run the setup. I am quiet sure that will enable the feature. Here if you are having some kind of battery issue then I do not really think it will be able to preserve the power for longer period. To fix this permanently you have to get a new battery. Just try visiting the official site first and update the drivers. And then try back.
In The Absence Of Light