okay so i had 4gb of ram,and my pc at that time had not video card,so i went to bios and alocated 1gb to video,then i bought a video card and i had from the 4gb of ram (the windows reads 4gbs) only 2 usable..... then i tought ill just buy 4 more,i bought 4 more gbs of ram then i had 8gbs and the windows reads 8 but only 4Usable.... Help?
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