If you have a 64-bit CPU, then you can install a 64-bit operating system. There is no upgrade path from any 32-bit version of Windows to any 64-bit version of Windows (or vice versa). This change requires a complete, clean install.
If you have a 64-bit CPU, then you can install a 64-bit operating system. There is no upgrade path from any 32-bit version of Windows to any 64-bit version of Windows (or vice versa). This change requires a complete, clean install.