vista instalation

ive recently upgraded from windows xp to vista premium, i then orderd 64 bit
on the internet and upgraded no problem.
I had problems when i received an error NTDL file missing, so i tried to
reinstall vista 64 bit and now cannot activate this because ive already used
the code.
Can anyone help

Hello,

try reactivating by telephone. There won't be a problem.

Greetings,
P. Di Stolfo

"madtaz1966" <madtaz1966@discussions.microsoft.com> schrieb im Newsbeitrag
news:9C511797-2C73-4E5A-87EE-A4BDB1D0EBD7@microsoft.com...
> ive recently upgraded from windows xp to vista premium, i then orderd 64
> bit
> on the internet and upgraded no problem.
> I had problems when i received an error NTDL file missing, so i tried to
> reinstall vista 64 bit and now cannot activate this because ive already
> used
> the code.
> Can anyone help