After performing Windows Update m y system simply failed to boot properly. I had kept Automatic Update on so that some of the important updates are not missed. But I do not understand what happen. I checked and found that update has modified the existing sata driver due to which the system is getting locked up. While compared to that the old one was working properly. I had re-installed the old driver back and my system is working fine. I removed all useless updates which are not required. I want to know that does there is a way by which I can simply un-install Automatic updates. I do not want this any more. I am quiet fed up with the same. I think next time surely this is going to happen back. It would be better if I can stick with manual update download.