How to Create a Second Partition on SD Card for Android?

Here, we will teach you how to create a second partition on SD card with a proper file system for Android so that you can use it as internal storage and move apps with Link2SD.


By Lucas / Updated on May 12, 2023

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Why Need 2nd Partition on SD Card?

SD card is the abbreviation of Secure Digital memory card, which is designed for saving videos, music, images, documents, and other data. It’s commonly used in smart phones, video games consoles, MP3 players, digital camera and other Portable devices. As a storage device, the capacities of SD card vary between 256MB and 2TB for different usage.


Sd Cards

In most cases, if the smart phone built-in storage SD card is running out of effective space, with more apps installed, your smartphone may prompt you that "low space in internal memory" which has a huge effect on the performance. So you may be frustrated with your smart phone. The surprise is you can create second partition on external SD card and then move apps and games with Link2SD to that partition to free up the internal SD card.

Or if the internal SD card has plenty of space and you might want to create a second partition on your SD card to speed up smart phone. Therefore, how to create 2nd partition on SD card or how to partition SD card for Android phones in Windows 7/8/10?

Before You Make Second Partition on SD Card

Prior to creating a second partition on your SD card, you need to make the following preliminary work:

Sd Card Adapter

  • A computer with Windows OS installed.

  • SD card belongs to your smart phone and you have to backup data on it in case of your valuable data get lost.

  • SD card reader and connect your SD card to the Windows computer via the reader. If there is no SD card reader on your computer, please prepare an adapter. Then you’ll need to insert your microSD card into an external microSD card adapter, and insert that adapter into the card reader.


  • SD card partition software: AOMEI Partition Assistant Professional.

AOMEI Partition Assistant is a powerful and reliable SD card partition tool, and also applies for hard drive, USB flash drive, SSD and other storage devices, as well as the service for extend, format, copy, resize, delete, create partition, and migrate OS to SSD, NTFS to FAT32 converter, Windows To Go, format a write protected SD card/USB drive and more. With so many useful features, it’s highly recommended by users in Windows 7, 8, 8.1, 10. You could download AOMEI Partition Assistant Demo version to have a try.

Download Pro DemoWin 11/10/8.1/8/7/XP
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How to Create Second Partition on SD Card for Android?

In order to partition SD card in Windows computer with AOMEI Partition Assistant Professional, you can make use of the “Create Partition” feature, which can directly create another partition from the existing partition.

Note: To prevent data loss caused improper operations, you can first back up important files via the free AOMEI Backupper.

Step 1. Install and run AOMEI Partition Assistant Profesional. Right-click the only one partition on your SD card and select “Create Partition”.

Create Partition

Step 2. In the pop-out window, you can specify the size of the second partition and click on “OK”.

New Partition Size

Step 3. Click on “Apply” to commit the pending operation.


Besides, you can also use the “Split Partition” feature to split the only one partition into two smaller partitions. After a few seconds, you will find the second partition on SD card has been successfully created. Then you could move programs and apps to the second partition with Link2SD to free up the space of internal memory.

Split Partition


After reading this post, now you should know how to create second partition on SD card for Android phone. The SD card partition software (AOMEI Partition Assistant Professional) also comes with many other features to help you manage disk partition conveniently: clone SD card, wipe SD card data completely, transfer OS to SSD, convert disk between MBR and GPT without deleting partitions. If you are running Windows Server OS, please switch to AOMEI Partition Assistant Server Edition.

Lucas · Staff Editor
I prefer peaceful and quiet life during vacation,but sometimes I watch football match if my favorite club performs brilliantly in that season. And I love reading, painting and calligraphy, thus I send my friends festival handwriting cards every year.