My system is a Lenovo product (free DOS) made for vista installation. At first I install vista without any problem then I downgrade the system to XP.
But now when I tried upgrading to vista again it got stuck while copying windows files (it's copying till 45 to 50 percent) then terminate the installation.
I have tried with new DVD also still the problem is the same.
My system hardware configuration is made for Vista, i.e. there is no system incomapatibility reason.

With the website named being "vista forum" hope to have expert solution on this?

Thanks in advance Guys