I have A Asus K55VD 15.6-inch Laptop (Smoky Black) - (Intel Core i5 3210M 2.5GHz Processor, 6GB RAM, 750GB HDD, DVDRW, LAN, WLAN, Webcam, Nvidia Graphics, DOS) laptop and i have installled windows 7 ultimate in it if we click on properties of My Computer then it shows installed RAM as 8 GB and usable RAM as 3.15 GB i have to increase this RAM to 4GB
or more so how can i do that
or more so how can i do that