I have 4GB of RAM and 64 bit OS actually, you are getting this all wrong. It is using too much RAM, using a whole 1.7GB which only leaves me with 2.2GB, which is really insuficent.

I only have 4GB of ram and I want to use less memory but i can't. pls help!

i use this computer to do web browsing, play minecraft and some flash games.

Okay I will do so, and also I don't mean hard drive space, but I will try uninstalling the factory bloatware.

This is bad, this is very bad. I don't like the fact it uses up so much memory, the computer needs this stuff and it is using so much of it!
I just got this computer 3 days ago to replace my old one...