My friend is using an HP computer with Windows Vista Ultimate 32-bit edition. When he opens his Windows Update window, he tries to install 4 Microsoft updates, but all 4 of them fail every time that he tries to install them. It gives him an error code of 80070490. I tried to fix the problem, but nothing that I did solved the problem. I tried turning the Windows Updates on and off in the Command Prompt, but that didn't work. I even tried turning the firewall off and changing the DNS server address, but nothing that I did so far solved the problem. He had this problem for a while. What can I do to fix this problem?