mere pass 80g.b ki sata hdd hai, jo k kuch bilkul theek chal rahi the, kuch din pehlay jab main nay computer off kiya or aglay din jab on kiya to hdd khraab ho chuki the or boot ni ho rahi. main nay us ko d.m say format kernay ki try ki laikin MBR MISSING ka ERROR MSG ata hai or wo format b ni hoti, phir main nay d.m say he MBR reload kernay ki try ki laikin nakaam hua,

so plz help