I need to know if I would need to a complete fresh install if I move to 64 bit? From what I have read this is the case. My only incentive to upgrade is due to ram problems and wanting to ad 2 more gigs since 32 bit only reads 3.6 gig.
Yes, you do need a clean install.
You can use windows easy transfer to export your settings and files.
After windows 7 64 bit is installed, you can import them back.
Your apps will need to be reinstalled.
But... the license for windows is not 32/64 bit sensitive.
If you have a 64 bit install dvd available, you can use it to do a clean install, and reactivate using your original activation key.
So I could use my windows 7 32 bit premium key and upgrade to 64 bit windows 7?
I have done exactly that. I did the reverse explicitly so I could run civ 2.42 which only runs on 32 bit.
No problem reactivating.
I did this on a laptop with a oem product key.
The motherboard is still the same, so it does not violate the oem limitation.
I used a windows 7 32 bit upgrade dvd.
I think actually all of the windows dvd's are exactly the same, differing in 32 or 64 bit versions.
It is the activation key that unlocks the different options.