Plenty of information here:
32-bit and 64-bit Windows: frequently asked questions
When you've installed the 64-bit version of Windows you'll find you have two Programs folders:
1. Program Files, which is the default location for any 64-bit software you install.
2. Program Files (x86), which is the default location for any 32-bit software you install.
You will also find you have two versions of Internet Explorer: a 32-bit version and a 64-bit version.
Will that make me able to install 32-bit applications?
If I delete both my disks, could I just take a backup of my HDD and then copy over again after the installation?
Use Windows to delete your old partitions and create new ones. Windows will automatically format the partition you install it to, other partitions will need a quick format before you can use them.
Also my HDD? My HDD is the disk I do not want to install Windows on. All it contains is a game :)
Can't tell if you have 32-bit currently installed on your SSD now or going to install it on a new SSD. So, if you haven't already done so, be sure & change in BIOS from IDE to AHCI for your SSD.
I want to install it on the same SSD. Why set to ACHI if I may ask? My brother has IDE on his SSD, and he is running 64-bit :)
All cool responds! Keep 'em coming!
Cheers,
FredeGail