You do it the same way you would to go from 32-bit to 64-bit. Full wipe and reinstall, followed by reinstalling all applications and restoring the latest backup of your data. There is no "easy" button here.
You do it the same way you would to go from 32-bit to 64-bit. Full wipe and reinstall, followed by reinstalling all applications and restoring the latest backup of your data. There is no "easy" button here.