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Lexar JumpDrive Memory Stick Malfunction: ''format''msg now appears

My Lexar JumpDrive FireFly 2gb drive recently began acting up. When trying to browse the files in Windows Explorer/My Computer, a message appears stating the following: ''You need to format the disk in drive [F:] before you can use it.'' It then asks, ''Do you want to format it?''

I don't want to format and lose all the files stored on it. What can I do to recover my information and fix it?

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  • kidtriz Jul 16, 2009

    I had the same thought, however, My Computer [or any program that opens documents for that matter] will not allow me to access my files. When I try to view my files, the message I was referring to then appears. It's as if they were never there. Also, Microsoft's "AutoPlay" window no longer pops up automatically when the JumpDrive is plugged in and "Removable Disk" now appears in My Computer instead of the actual name of the drive "Lexar". I'll see what I can do. Thanks (More help is welcome here)!!!

  • kidtriz Jul 17, 2009

    The only driver I found on Lexar's website was for using the Lexar JumpDrive with Window's 98. Where it was usually readable on both my work and home computers, and many others, it's giving me the same result on EVERY computer I use to try to access the files from in order to copy them [it wants me to format & device isn't recognized, regardless of which computer i use]. The problem began at work and I always eject my drive before removing. Maybe some IT operation wiped out my drive or something.

    I'll have to read up on the 'Disk Management' page some more and the steps to take for that process...

    When Right-clicking on the drive and going to Properties, it states under the 'General' tab:

    Type: Removable Disk
    File System: [blank]
    Used Space: 0 bytes 0 bytes
    Free Space: 0 bytes 0 bytes
    Capacity: 0 bytes 0 bytes

    However, using System Information (System Information >> Storage >> Disks), I was able to get the following information for the Lexar 2gig:

    Description Disk drive
    Manufacturer (Standard disk drives)
    Model Lexar JD FireFly USB Device
    Bytes/Sector 512
    Media Loaded Yes
    Media Type Removable Media
    Partitions 1
    SCSI Bus Not Available
    SCSI Logical Unit Not Available
    SCSI Port Not Available
    SCSI Target ID Not Available
    Sectors/Track 63
    Size 1.86 GB (1,998,743,040 bytes)
    Total Cylinders 243
    Total Sectors 3,903,795
    Total Tracks 61,965
    Tracks/Cylinder 255
    Partition Disk #1, Partition #0
    Partition Size 1.87 GB (2,004,877,312 bytes)
    Partition Starting Offset 0 bytes

    FYI...Also, I found that some Lexar 2gigs were recalled several years back in 2006, but I just bought my new model this winter from Wal-Mart, which has no recalls out. Thanks again, these files are important... and yes it's quite a pain!

  • ChoochLevis Feb 27, 2013

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Unfortunately, this is an occurring problem.
What I had to do was save all my files on my friend's computer, format the flash drive into NTFS and then throw the files back on.
It only takes a minute, but what a pain in the ****.
Good luck.

Posted on Jul 16, 2009

  • Mixplyxit Tigerbait Jul 16, 2009

    You could try reinstalling the drivers.
    Was there something you installed prior to this problem?
    What does disk management show you?
    I know how important it is not to lose data, so post another comment and let me know if that helped.

  • Mixplyxit Tigerbait Jul 17, 2009

    The last thing I can recommend is this.
    I browsed through Microsoft Support and I came upon it.
    I hope this one finally works out. Apparently WIndows likes to think two drives have one letter from time to time, creating a major snafu.
    I recommend you bookmark the page, as I have, in case this happens again.
    I hope this finally works for you.


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If you have files on the stick and it asks for formatting, the file system is probably damaged. Try a quick format on the USB-stick. DO NOT save any files to the stick. Use a file recover tool on it, like example: Piriform's Recuva. Use the Deep Scan function.

Posted on Aug 08, 2010

  • Pioneeri Aug 08, 2010

    I have heard this sometimes happens on Lexar JD Firefly's, my 2gb version did the same and held very important files. got them recovered.



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Hi there, I'm having problems opening the files on Lexar 2GB JumpDrive FireFly it just says not formatted do you want to format? Please help I have precious photos etc. Thanks

If it says that the files are probably gone, sorry. Try using it on a different system, if it says the same thing they are definitely gone. Good luck I hope it works on a different system.

Aug 14, 2009 | Lexar FireFly 2GB USB 2.0 JumpDrive

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Ido not know how to use it

Hi there,

Just install the driver to your computer, you can get it from Installation procedure can can found from After that, you now use you USB memory card.

Jeep Brainy

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Please show me step by step on using the Lexar 2GB JumpDrive FireFly flash drive. I have an HP computer. I need to back up many photos. I will buy more of the same flash drives if I learn how to use them....

What operating system are you using? Should work with XP and Vista. Go to windows explorer and click on C drive, click photos folder, select required photo, click and drag icon to the Firefly icon and release mouse button. File should be copied to jump drive.

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