Why Is My Micro SD Card Only Showing 30MB

I have a 16GB SD card, but I found it only shows 30 MB on my Windows computer. And I'm unable to format it in Disk Management. What should I do? Any answers will be appreciated!

There are a few possible reasons why your micro SD card is only showing 30MB instead of its full capacity:

• Partition problem: There might be two partitions on your SD card and Windows can't read them properly and only shows the first small partition, which is often around 30-60MB in size.
• Physical damage: Physically damaged SD cards may have trouble being read by Windows.
• Card Reader issue: If you find the SD card reader is not working properly, you may not be able to see the full capacity of the SD card on Windows.

To resolve the Micro SD card only showing 30MB, you can first try insert it into a different card reader to determine the cause of the issue.

Note: Before trying anything below, back up important data to avoid data loss.

If the Window still shows wrong capacity, you can check its status in Disk Management.

However, some users may find the SD card is using FAT32 or exFAT, which is restricted by Windows from extending. In that case, you'll need a third-party disk manager tool like EaseUS Partition Master Free.

This tool breaks the Windows limitations, allowing you to manage partitions without obstacles. With its powerful feature, you can merge two partitions without losing data on it. Follow the steps here to merge two partitions:

Related Article: How to Restore or Format SD Card to Full Capacity