Hi, excuse my english it's not very good.
i have bougth a new laptop and it came with a INTEL T4200 CPU it's a dual core CPU but the laptop came with a 32 bits O.S. windows 7 .
i want to know is my CPU 64 bits??? will i get any advantage in changing my 32 btis windows 7 for a 64 bits windows 7???
Check this link:
The CPU does support 64 bit instruction set.
Now whether or not you want to install a 64bit OS, it is up to you since when using 64bits you may have software compatibility issue.
The main advantage with 64bit OS is that when you are using 4gb of memory on a system, you dont have any limitation.
Use this tool to check your CPU capability
All the best,