By Emily / Last Updated September 2, 2019

Why format a Micro SD card in Windows?

The Micro SD card is one of the most commonly used storage media for users to store applications, programs, files, music or other data. However, you might need a Micro SD card formatter to format it in the following situations.

  • When the SD card turns into RAW file system, formatting is also an effective way to repair raw drive.

  • Before you lend your Micro SD card to your friends, or you need to share it with others, you had better to format it to protect your privacy information.

  • When the card is damaged for no reasons, or it is write-protected, you can try to format it to solve such issues.

  • When the SD card is full and you want to free up disk space for new data, you need to format it.

General ways to format Micro SD card in Windows

To format SD card or other hard drive, you can use Disk Management, File Explorer or Diskpart, all of which are general ways to format micro SD card in Windows 10/8/7.

In Disk Management and File Explorer, you need just right click the target drive and choose "Format..." option, and choose a proper file system in the subsequent window, then follow the guide to finish the formatting process. In Diskpart, you need to run the complicated commands: diskpart->list disk->select disk->list partition->select partition #->format fs=fat32 quick, or you can replace fat32 with ntfs or exfat instead.

Common Micro SD card format error you may encounter

However, sometimes you cannot format Micro SD card via the gerenal ways in Windows, and many formatting errors might occur. Below is a list of the common Micro SD card format errors you might meet.

  • When you format it in Windows Explorer, the SD card format did not complete successfully and popped out an error message “Windows was unable to complete the format”.

  • When you try to format an SD card, which is larger than 32 GB, to FAT32 in Diskpart, you may receive the virtual disk service error “the volume size is too big”.

  • If the SD card is under write protected status, you won’t be able to format Micro SD card due to “The disk is write protected” error.

  • Sometimes, when you want to format the SD card, you cannot find it in Windows, or we can say, the SD card are not detected, recognized.

Free download the best Micro SD card Formatter

Although you might meet some unexpected issues when trying to format Micro SD card in Windows, do not panic! There are still several other ways for you to perform a successful format there. The easiest and most efficient way is to use a reliable Micro SD card formatter software. In order to save your time and energy, here we recommend AOMEI Partition Assistant Standard (supporting all versions of Windows 10/8/7/XP/Vista). It is a free SD card formatter, but helps when Windows built-in formatting tools fails.

  • First of all, it allows you to format a large disk (over 32GB) to FAT32 smoothly.

  • Second, it can help you format corrupted SD card in Windows computer.

  • Third, it is able to directly format write-protected disk instead of clearing the write protection attribute first and then formatting it.

  • What’s more, it comes with “check bad sector” function, which enables you to repair corrupted SD card without formatting.

Steps of formatting Micro SD card via the AOMEI Partition Assistant

Before proceeding to the steps, please free download the micro SD card formatter software, and back up everything you need since formatting process will destroy all data on the target SD card.

Micro SD Card Formatter Software | AOMEI Partition Assistant

Format SD card, USB flash drive, pen drive, external or internal hard drive. Support most of USB drive brands, such as Kingston, SanDisk, Samsung, etc.

Download Freeware

Win 10/8.1/8/7/XP

20,000,000 people have downloaded it

Step 1. Connect the Micro SD card to Windows PC, install and launch AOMEI Partition Assistant, right-click the card and choose “Format partition”.

Format Partition

Step 2. In the pop-out mini window, you can edit the label as you like in the “Partition Label” box, select the NTFS, FAT32, Ext2 or Ext3, Ext4, exFAT file system in the "File System" drop-down list for the disk (here we choose FAT32), and you can change cluster size in the “Cluster Size” list.


Step 3. Back to the main interface, click “Apply” and “Proceed” to format the SD card.



Compared to the Windows built-in formatting tools, this Micro SD card formatter software is more versatile and powerful. You can use it to format all kinds of memory cards in simple three steps. More importantly, its Pro Edition comes with much more amazing functions, like convert data disk between MBR and GPT without data loss, and migrating OS to SSD.