How to Format a Sandisk Micro SD Card

by C. Taylor

    Your SanDisk microSD card unleashes small, personal electronics by increasing their storage capacities. These fingernail-sized cards also allow easy transfer of data between your device and a computer. However, if this data becomes corrupt or you simply want to start over with a fresh card, you might want to format the card. Formatting the card will wipe the card clean and correct many issues that may arise.

    Step 1

    Insert the SanDisk microSD card into a microSD card adapter, if your reader does not support this smaller size format. This adapter transforms the microSD card into a standard SD card that is readable by most card readers. When using an adapter, make sure the side lock is in the unlocked position.

    Step 2

    Insert the microSD card or card adapter into your computer's card reader. If your computer does not have a card reader, add one by purchasing a USB card reader. These readers plug into a USB port and usually require no additional drivers or software.

    Step 3

    Click "Open Folder to View Files" in the AutoPlay window or press "Win-E" to open Windows Explorer.

    Step 4

    Right-click the microSD card's drive letter and select "Format."

    Step 5

    Click the "File System" drop-down menu and select "FAT32" to enable near-universal compatibility between devices and operating systems. If your card is greater than 32GB, select "exFAT" instead.

    Step 6

    Enter a name for your card in the "Volume Label" field, if desired.

    Step 7

    Click "Start" and select "OK" in the confirmation dialog.


    • Back up any important data on the card before formatting. After formatting, this data will be unrecoverable from the card.

    Required Items

    • MicroSD card adapter
    • USB card reader

    About the Author

    C. Taylor has been a professional writer since 2009. He has written for online publications and the "Journal of Asian Martial Arts." Taylor specializes in martial arts, traveling, sciences and computer repair. He received a Master of Science in wildlife biology from Clemson University and a Bachelor of Arts in biological sciences from the College of Charleston.