Best compatible windows OS version

sshinkar54

Honorable
Feb 1, 2013
11
0
10,510
Hello Team,
bellow is my PC configuration--
motherboard - gigabyte 945
Processor- intel core 2 duo
RAM- 4gb (2+2) DDR2
hdd- 250 gb (SATA)
os- windows7 32 bit
Graphics Card :-"ZOTAC NVIDIA GeForce GT 630 Synergy Edition 2 GB DDR3 Graphics Card"

Can you suggest me best compatible windows OS version so that I can use this for best gaming performance.
I can see only 3.25gb ram is available to use.. Can I install 64-bit os to utilize full ram?

Thanks,
 


HOw? it is saying 3.25 is usable of 4gb..
will it show me the same if I install 64 bit OS??
will my configuration allow me to install 64-bit OS??
 

the other .75 gig is utilized by the system tp provide addressability to other devices with memory, like the 2 gb of ram on your video card.