activation and validation

[Guest]

i have vista premium copy which is genuine but after i did a format and
installed it again.it tells me that the product key is invalid when it is
valid.But the validation process is successful and it passes but the
activation failed with a error code.please advised what to do.

 

[Michael Solomon]

i have vista premium copy which is genuine but after i did a format
and installed it again.it tells me that the product key is invalid
when it is valid.But the validation process is successful and it
passes but the activation failed with a error code.please advised
what to do.

Are you sure you are using the product key? The product key should be
somewhere on your computer case, not on the CD case.

 

[AJR]

Activate by phone.