Mere system pr 2 sata ki hard disk lagi hein. 1 cgate ki 500gb aur 2nd mextor ki 320gb, ab mene system pr win 7 ki hay to jab win desktop ata hay to error show hota hay "hard disk failure" detail mein dekhta hoon to mextor ki 320 gb hard ka problem show hota hay. win xp mein theek chal rahi the. mene win 7 500 gb hard pr install ki hay. kindly mera masla hal karde.