Sandisk Extreme 64Gb show only 27GB


I have a Sandisk Extreme micro SD

  • 64GB XC I V30 U3 A1 micro SD
    which in Windows 10 only shows as a 27GB disk.
    In disk manager and in Diskpart listing.

How can I regain the full capacity of the micro SD?

Thanx Jaap

Hi all,

Found the tool: SD Card Formatter v5.
Format et voila 58GB available :slight_smile:


There are two ways ot fix it:

Way 1. Format SD Card to full capacity with DiskPart Command:

  • diskpart
  • list disk
  • select disk m where m is the SD card number.
  • clean
  • create partition primary
  • format fs=ntfs quick

Way 2. Restore SD card to full capacity with free partition manager.
There are more details to fix SD card not showing full capacity.