Salam Brother
ap ki old Hard Drive main OS install karny ki koi zaroorat nahin hai ap just us ko PC main lagain CD ROm ya kisi aor Port main
then yeah software install karain
http://rapidshare.com/files/144464940/EASEUS_D_R_W_Pro_v4_3_6.rar
Yeah Best SOftware hain is main deleted file recovry aor formated drive recovry b hai
ap complete scan karain gay to formated aor deleted both files recovr ho jain gi InshaAllah
Wesay to aor Software b hain like R-Studio , Get Databack , FIle Recovry etc
but yeah soft in sab say boht acha hai
agar ap ko koi masla ho to plz feel free to Ask
JazakAllah