I have recently installed windows 7 on my Dell vostro 1014 laptop and the installation process was fine. And the Windows 7 is also doing well. But the only thing that is worrying me is whenever I try to install any program on my system then the system freezes in between the installation. And the same thing is happened with each and every program. I don't know why this is happening and also unable to install any new program. Please someone help me to solve the problem.