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#11
Hi,
If you don't have a copy of the manual for the computer you can quite likely download it from the manufacturer's site.
Then at least you could verify how much of the system memory is allocated to the graphics unit and change he amount if you'd like.
Before you decide to change from 32 bit to 64 bit it would be advisable to make a full system backup so you can always revert to the current system if necessary.
Cheers,