I'm currently running W7. I want to upgrade to W8 Release Preview. Being in the IT field, I feel like I should start learning it down to it's roots before October. My question however is once I upgrade to W8 Release Preview, when the release date rolls around this October..can I simply purchase a key? OR can I simply do a upgrade without losing anything?
I don't want to upgrade to W8 right now, if I have to reformat or lose everything when the release comes out.