Assalam-o-Alikum My all Dears

Mere pass 80GB SATA ki hard disc he. Mene usme WINDOWS VISTA ki thi but after some days , mein WINDOWS 7 install kar raha tha. Windows 7 ki partition k baad jab computer restart huwa tha to tab se system wahin freez ho jata he. Meri mother board bhi ON hoti he, setup bhi show karti he, RAM, Processor , Supply sab theek working karte hein lakin PC booting nahi kar raha. Jab mene hard disc change ki to woh chal gayi thi. Lakin SATA wali Hard disc power bhi leti he sab kuch theek he usme bas yehi 1 problem he k usme koi bad sector aa gaya he. Please koi mjhe usko formate ya recover karne ka tareeka bata de jo without booting ho.