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  1. #1


    Member Since
    Nov 20, 2011
    Posts
    4
    format USB stick
    how do I clear off old data and re-format a USB device in OS 10.7

  2. #2

    cwa107's Avatar
    Member Since
    Dec 20, 2006
    Location
    Lake Mary, Florida
    Posts
    26,926
    Specs:
    15" MBP, Core i7/2GHz, 8GB RAM, 480GB Crucial M500 SSD
    Open Disk Utility (Applications => Utilities). Select the Flash drive in the left pane, click the Erase tab in the right pane, select the format (usually MS-DOS) and click Apply.
    Liquid and computers don't mix. It might seem simple, but we see an incredible amount of people post here about spills. Keep drinks and other liquids away from your expensive electronics!

    https://youtu.be/KHZ8ek-6ccc

  3. #3

    harryb2448's Avatar
    Member Since
    Nov 28, 2007
    Location
    Nambucca Heads Australia
    Posts
    22,104
    Specs:
    Imac 27" Retina 5K, 512GB flash memory, 3.3GHz, 16GB memory, macOS Sierra beta.
    G'day and welcome to the forums.

    If you are going to use it exclusively with your Mac, format Mac OS Extended, otherwise as cwa107 suggests.
    Hang on to those original install discs like grim death! Using OS X.7 or later make a bootable USB thumb drive before running Installer!

  4. #4


    Member Since
    Nov 20, 2011
    Posts
    4
    thank you. It cleared off, but now as I scan to the USB, it said it was empty.

  5. #5

    vansmith's Avatar
    Member Since
    Oct 19, 2008
    Location
    Toronto
    Posts
    19,782
    Specs:
    2012 13" MBP (2.5 i5, 8GB)
    Yes, formatting a disk wipes it clean. This is normal behaviour.
    Important Links: Community Guidelines : Use the reputation system if you've been helped.
    M-F Blog :: Write for the blog
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  6. #6


    Member Since
    Nov 20, 2011
    Posts
    4
    okay, I scanned new material onto the USB and could read it. Then I scanned more of the same and the flash drive said it was removed from the scanner. I am running the repair disk utility now. May have to start over. Good thing I didn't immediately shred the documents I was scanning.

  7. #7

    vansmith's Avatar
    Member Since
    Oct 19, 2008
    Location
    Toronto
    Posts
    19,782
    Specs:
    2012 13" MBP (2.5 i5, 8GB)
    How are you scanning content? Are you telling the application to save the scan to the USB drive? If so, the files should be on the USB drive and depending on how you've set up the scanning application, it may or may not also be on your computer somewhere. Is this what you mean by "removed from the scanner"?
    Important Links: Community Guidelines : Use the reputation system if you've been helped.
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  8. #8


    Member Since
    Nov 20, 2011
    Posts
    4
    I have an HP Officejet that can be set up at the computer or at the printer to scan to memory device that is plugged into the printer. I plugged the USB flash drive into the printer and piled the copies on the auto feeder on top.

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