Can I have 8 GB RAM on 32-bit Win 7? [duplicate]
You can install 8 GBs on 32-bit system, but you won't be able to use it. You need a 64-bit system to do that.
When using 32 bit machines, only 3,8 GB will be detected and used. If you want more, switch to 64 bits. I'm currently using 16GB on a Windows 7 64 bits Edition.