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1tb hard drive shows unallocated & shows error cyclic redundancy error
Hello,
My toshiba extrnl 1tb hard disk changed to raw aftr abrupt power cut whn drive was cnnectd to pc. After sum research tried method of test disk on win 7. I followd the procedure and writed partion. But aftr rebootng nw disk changed to unallocated. I tried initializing disk to mbr but it shows cyclic redundancy chck error. And also whn i run test disk nw. It show partion read error. I backdup my data frm drive nw. But also dnt want to lose my drive.
I treid all, chkdsk also but drive dosnt have drive path lettr so i cant run chksdk mthd also. I also use 3rd party app to rebuild mbr bt it aso faild.
Plz can u suggest, wat can i do to save my drive.
My above prblm can be bettr undrstand by you in followng link video.
https://m.youtube.com/watch?v=synoVfeZl_g
Awitng ur rply