Upgrading Vista 32 bit to 64 bit

[chengbin]

Can I do an upgrade, or do I have to do a clean install?

 

[Guest]

Clean install.

 

[chengbin]

Clean install.

I'm just curious, but why?

 

[ohiou_grad_06]

Different code bases. They just are not compatible, they even use different drivers. Like if you go to 64 bit, you notice in the program files, if a program is 32 bit only, it actually installs into a program files folder labeled "Program Files(x86)"