Can i upgrade to 64 bit?

Solution
If you already have the 32 bit version, then the license will still be valid.
You can not upgrade in place from 32 bit to 64 bit, you need to do a clean install.
Find a copy of 64 bit windows to do the install. They are all the same, I think. Activate using your current 32 bit code.
If you already have the 32 bit version, then the license will still be valid.
You can not upgrade in place from 32 bit to 64 bit, you need to do a clean install.
Find a copy of 64 bit windows to do the install. They are all the same, I think. Activate using your current 32 bit code.
 
Solution

If the coomputer came with 32 bit is there a code somewhere that i can use

 
Your pc should have a Microsoft coa code sticker on it. It is a set of 6 five character blocks separated by dashes. It is required to be affixed to your pc somewhere.
Usually on the bottom. On a laptop, it may be found inside where you remove the battery.
Another way to find it is to download a free app called magical jelly bean keyfinder.
It will like the activation keys on your pc from windows, and perhaps other programs tif applicable.