I had recently re-installed Windows Vista on my system. When i try to update it, i can see more then 50 new updates in the list. So when i try to download and install them on my system i'm not able turn on my pc, after trying to restart the system. But when i try to do a system restore it works fine but again after updating it doesn't allow me to turn on my pc. Can any body tell me that why i'm having such problem on my pc? What can i do in order to get rid of the above issue? Kindly provide me the correct solution to resolve the above problem.