For the purpose of this tutorial I’m going to say that you are using All Ways On mode because this is what I use on my Laptop for a few reasons, you should be able to decide what you need for yourself while following the steps in the tutorial below.
Click on Start (Windows Vista Logo) Bottom left
Click on Control Panel
Click Power Options
Now I’m going to explain a few things here and the rest of this tutorial is optional only, as you will want to select different options depending on how you use your computer. As I said above we are going to do this in High performance mode (Always On) but you can change the options as you see fit from here on in.
Check High Performance, and then click on Change plan settings below.
All the four drop down boxes on here if you always need your computer to be active (many for network reasons) Change them all to Never.
Click Save Changes
One more thing that you will want to change if you are using a laptop is what happens when the lid of the laptop is closed.
On the left of the Power Options window click Choose what closing the lid does.
No you will want to change the Drop down box on when I close the lid to Do Nothing.
Click Save changes
There we go your laptop will now, you have not set up the power options on your computer so that the hard drive/ monitor never turn off and are always active, be aware though that if you are using a laptop your screen will still enter the screen saver if you have on set and will also turn the screen off when you close the lid.
(The main reason I wrote this tutorial is because someone asked me if they can keep a network active while the computer is asleep, the answer to this is no. And these are the steps to stop your computer sleeping.)