It's rare to see a computer come preinstalled with a 64-bit edition unless it's customized by the customer or a high-performance model with more than 4GB of RAM. The easiest way of finding out is to press Windows + R and type in winver before pressing Enter. Unless x64 is included in the version listed it is a 32-bit edition.
When I first turned it on I am certain it asked me to choose from 32-bit or 64-bit, lacking in knowledge at the time I chose 32-bit. I've tried numerous times since to get back to that and cannot. Is this really a 64-bit?
Processor AMD Turion(tm) 64 X2 Mobile Technology TL-50, 1600 Mhz, 2 Core(s), 2 Logical Processor(s)
It's an HP Pavillion dv9208nr Notebook