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  • A virus should not prevent you from reading the drive. I have a feeling the power outage/surge ruined the drive. Pen/flash drives and SD Cards are not as reliable as a hard drive and can go bad really fast.

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  • ls_01 wrote:

    I have one 16 Gb pendrive which is working yesterday.Actually it got infected by some virus i think i have formatted once from Ubuntu.Then connected in Windows machine and it not able to detect in Windows so tried to format inside Windows which was not happening

    So connected that same pendrive to  the Ubuntu machine and tried formatting to NTFS the format was happening the power went off.After i took and connected once to the Ubuntu machine inside disk itself not detected and in the Windows also Disk management is not detecting.

    Now I am to connect to the Laptop or PC the light is glowing but it not detected in df -h,fdisk commands.Any suggestions for this issue to make my pendrive work now

    You should replace the USB as it is most likely hardware damage, but check what does the lsblk command shows in Ubuntu?

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  • for lsblk also the pendrive is not showing now.But in the Disks its shows but unable to format since all the options are greyed out

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  • The power interrupt messed up the drive, as dannyh2 has said, these things are very unreliable.

    You were writing to the memory chip, a very sensitive procedure  when the power went off..

    Get another Pendrive since neither Windows or Ubuntu can lock on it.

    Cheers

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  • If you have access to a Windows machine this DOS programme works wonders https://hp-usb-disk-storage-format-tool.soft32.com/

    And if the drive is locked in Linux type "sudo hdparm -r0 /dev/sdb". Make sure your USB is registered as sdb

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  • Hello,

    Try booting a Windows computer as normal from its internal drive with the 16GB USB flash drive plugged into it.  Once the computer has started up, use Windows' DiskPart (filename: DISKPART.EXE) tool to select the drive and then clean it.  At this point, you should be able to format it from within DiskPart or the Disk Management (filename: DISKMGMT.MSC) MMC snapin as normal.

    If the 16GB USB flash drive is not recognized at all, remove it from the computer and either return it under RMA to the manufacturer (if still under warranty) or purchase a new one.  I have had good luck with USB flash drives from Corsair, Lexar, Patriot, Samsung, and Sandisk, to name a few.

    Regards,

    Aryeh Goretsky

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