3TB Seagate USB External - Not Formatted

How to use TestDisk to recover lost partition
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3TB Seagate USB External - Not Formatted

#1 Post by dgbullfrog »

My Seagate USB Drive is giving me the unformatted error. I ran TestDisk and found the partition but when I selected write the partition and rebooted I got the same error. Looking TestDisk again should the status be *-Bootable or Primary. I don't use it as a boot drive, but it shows as *-bootable, so wondering if I should change to Primary. I am not sure if I may have accidentally changed this before i wrote the partition.

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Re: 3TB Seagate USB External - Not Formatted

#2 Post by cgrenier »

Run TestDisk, Advanced, Boot, RebuildBS, List. If you can see your files, choose Write and confirm, Quit and restart your computer.
Run "cmd" (right click run as administrator), "chkdsk /f d:" (replace d: by the correct drive letter)