How to increase ram

Oh man, not this question again.
Windows 32 bit can oly use 4 gig of memory, no more.
If you are only getting 2 gig to show up, you may need to enable memory remapping in your BIOS.
That will allow all of to be accounted for during boot...watch your memory count at POST, if you only get 3 gig, then you need to find out where memory remapping is in your BIOS and enable it. If your board is fairly new, this should not be a problem though.
On many older boards, you need to do this, or you don't get more than 3 gig accounted for during POST, and then with the usual loss for the video card, controllers, PCI devices etc, you end up with only around 2 gig showing instead of the 3~3.4 gig you normally get with a 32 bit OS and 4 gig installed.