It works because of the WOW64 (x86 emulator) included in the 64bit system, which allows flexibility between the 64 bit system and the 32bit system to run 32bit software. However, some software, such as window drivers, Dedicated anti-virus software’s, some software’s do not work on 64 bit systems. Some people say that your processor is 32 bit, so you want to use 64 bit. If you want to use 64 bit, you need to have a CPU that is compatible with 64 bit. Some people want to know if your machine is compatible with 64 bit from windows