Dear friends main jab win start karta hoon toh flag k baad screen black ho jati hai aur login screen 2minuts k baad show hoti hai login k baad system theek chalta hai maine win bhi new kar k dekhi install aur antivirus bhi kiya ccleaner bhi use kiya lekin koi hal nhi nkla plz meri yeh problum solve karain .
mera pc
Dell 5421 .cpu 2.3ghz ram 8gb hdd 1tb win7 ultimate hai.