Aniksaha83 :
Made default bios setting's and again started the installation,same results,now what to do?
Did you check you ram for errors, download and run memtest, you need to run it for a couple of hours to be sure, also, check your hard drive for bad sectors or corruption, you can do this in another computer.
Finally, how and what are you trying to install Windows from ? (CD, USB)
Something else ive just noticed, 3gb of ram ????? how many sticks, how many gb are each stick.