I have dual booted my Acer aspire one d257 which has an Intel atom n570 1gb of ram net book with windows 8 and Ubuntu 13.04. Which operating system shall I upgrade my PC to the 32 bit or 64bit, my laptop came with 32 bit but what confuses me is that it is on the download page If you have a PC with the Windows 8 logo or UEFI firmware, choose the 64-bit download. The thing is that my PC is 64 bit capable. Which operating system should I choose. Please list your answer with reasons why. my laptop came with 32-bit and has 32 bit windows 8. luckily, my laptop processor is 64bit based.