Windows 10: Formatting SD has made the size 255mb instead of 64gb

Discus and support Formatting SD has made the size 255mb instead of 64gb in Windows 10 Network and Sharing to solve the problem; I formatted an SD and it used to have 64gb and now it shows as only having 255mb! Can anyone help me with how to fix this as it is quite annoying.... Discussion in 'Windows 10 Network and Sharing' started by JamieJoness, Feb 11, 2021.

  1. JAMIEJONESS
    JamieJoness Win User

    Formatting SD has made the size 255mb instead of 64gb


    I formatted an SD and it used to have 64gb and now it shows as only having 255mb! Can anyone help me with how to fix this as it is quite annoying.

    Thanks

    :)
     
    JamieJoness, Feb 11, 2021
    #1
  2. KRIZMANALO
    krizmanalo Win User

    micro sd

    Hi,



    See my answers below



    SD card up to 32-GB SDHC cards should be formatted in FAT file system.

    • 4 to 32GB cards - format using FAT32 and allocation unit size 32 kb.
    SD card 64-GB SDXC cards should be formatted in exFAT file system.

    [*]64GB cards - format using exFAT and allocation unit size 128 kb.



    If the card contains an unsupported format such as NTFS, you'll be prompted by the phone to format the SD card in a format that is supported (FAT or exFAT depending on your SD card's size)





    Hope my answers solves your problem! Formatting SD has made the size 255mb instead of 64gb :)



    Cheers!
     
    krizmanalo, Feb 11, 2021
    #2
  3. MELCHIZEDEK QUI
    Melchizedek Qui Win User
    Samsung Evo 64GB Micro-SD Card Unable to Format.

    Hello Thomas,

    For us to better assist you, we'd like to know the following:

    • Confirm which build is currently installed on your device. To check, follow the steps below:
    • Press Windows key + R, then type in winver.
    • Click OK.
    • Have you tried to format the SD card using another computer?

    Meanwhile, let's format the drive using the steps below:

    1. Press Windows key + E to open File Explorer, then
    right-click on This PC.

    2. Select Manage, type in your Administrator credentials if asked.

    3. Go to Disk Management, select the SD card.

    4. Right-click on your SD card, then select Format.

    5. Uncheck the box for Quick Format, the click on
    Start.

    Update us on the outcome.

    Regards.
     
    Melchizedek Qui, Feb 11, 2021
    #3
  4. MICHELLE HER
    Michelle Her Win User

    Formatting SD has made the size 255mb instead of 64gb

    Samsung Evo 64GB Micro-SD Card Unable to Format.

    Hi Thomas,

    We appreciate you providing us with those helpful answers.

    The time duration in formatting the drive with Melchizedek's steps should only take you 3-10 minutes, depending on the size of the data you're trying to remove from the SD card.

    For us to be able to isolate your concern, can you insert the SD card on a different PC and see if the issue persists? Or insert the SD card on a different mobile phone and see if it will be detected? If the issue is still the same, your SD card might be the
    cause of the error you're receiving when you're trying to format it.

    Let us know what happens after the above mentioned troubleshooting steps.

    Thank you.
     
    Michelle Her, Feb 11, 2021
    #4
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Formatting SD has made the size 255mb instead of 64gb

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