ano kaya papalitan dito ? ok naman dati ehEto talaga lodi ko.
yung games hindi naman nag lalag yung browser or desktop ganun tapos minsan blue screengaming not hunging, standby sa desktop naghang.not hdd yata eh
pinalitan ko na RAM ganun parin eh
4gb yun ram ko 
hahaha ganun ba, sure na hdd pala sakit niyan, may blue screen pala,.
bsod? hdd prob, in my xprienced,karamihan kasi.. many bad sectors na yan, revive it {hdd regenerator), repartition {minitool partition wizard}, in partitioning remove first part of hdd {kung saan always naiinstall ang os},dont use it.ready to go, reinsstall os/format.. gudluck.
tanungin ankel google, hdd regenerator.exe , or minitool partition wizard tool.exe{tested]