I've heard this is THE place to ask questions and gets actual answers rather than gibberish, so my query is when I initially installed Windows 8 I had 4 gb of RAM and wasn't in the market for an upgrade or so I thought, I have a bunch of programs, projects, documents, music, movies and specially games installed. I have ordered myself 8 GB of RAM to install, I have read that a 32bit OS doesn't support more than 4 gb is this just a myth?
So my questions is how do I install a 64 bit OS of Windows 8 and keep all my stuff without losing all my data like saved games and projects?
The best way to upgrade would be to backup all your important things on an external hard drive, flash drive, or even cloud service If it is not too massive.
I do not know much about Windows 8 and If it supports the upgrade function like the Windows 7 install DVDs did, you could always try that. That would essentially save everything from before and put it into one folder in your C:/ Drive, and then install the new version of Windows. I do not reccomend it as things could go wrong and your files could get corrupt.
I'm assuming here you are running a 32-bit version of windows 8 right now, right? If so, then the only way to upgrade to a 64bit version is do a clean install I'm afraid, so as Insane said, take a backup, then wipe your OS drive (unplug any other installed drives), install Windows 8 x64, install drivers, restore files, etc.