Convert 32 bit vista to 64 bit vista

[ConradCA]

I would like to convert my OS from Vists 32 bit to Vista 64 bit.

I have the Vista CD/DVD.

How would I do this?

 

[Scotteq]

There is no way to "Convert" because - although they look/feel/operate the same way - the 32 and 64 bit operating systems to not share the same internals at all. You must do a clean installation.

If you like, you can over write your current install by booting to the installation DVD and selecting "Custom Install". That should put your existing data into a folder named "WINDOWS_OLD", but you will have to reinstall all of your applications.

More ideally, you would just install cleanly to a fresh drive.