I have been using Wubi installer over the last few years. The most important advantage of using Wubi is that it allows the user to test the operating system before installing it. But it has got a big disadvantage. Wubi installation doesn’t support hibernation. Another problem is that hard reboots can seriously hamper the functioning of the file system. I tried schlage access control Regarding the question of power consumption mentioned here I had felt that it was desktop which consumed the maximum power. So I used to turn it off whenever I was not using my system. But now I realize that it doesn’t make much difference.