By Ivy / Last update June 15, 2022

Why Clone Bootable SD Card in Windows?

SD cards are widely used on tablet, digital camera, smart phone, music player, and play station and so on. SD cards made by Samsung, Raspberry PI, SanDisk, etc., earn great popularity among users all over the world. A bootable SD card could minimize the downtime of the operating system by swapping to another function and work environment.

SD Card

Generally speaking, a user would like to clone a bootable SD card for these two main reasons:

  • For backup. Duplicating a bootable SD card to another place is a good way to protect this bootable operating system. When the original SD card get lost or damaged, one can get the same environment as soon as possible.

  • For device upgrading. As a removable storage device, SD card is vulnerable to any damages it receive, virus infection, human error, violent striking, device failure, and so on. Cloning SD card to larger SD card or newer one dramatically improves the performance and security.

You may have other reasons for copying a bootable SD card, but more important thing is to figure out how to clone the device. After all, Windows misses the cloning feature.

Best Free SD Card Copier

AOMEI Backupper Standard is free SD card copier that will help you clone bootable SD card to another SD card, external storage, or computer. With its powerful features, you are allowed to clone from larger bootable SD card to smaller SD card and vice versa. You can also make an exact copy of the bootable SD card, i.e. without changing partition’s size and layout, by cloning the SD card sector-by-sector.

The “Disk Clone” feature will clone SD card with multiple partitions, if it has. The “Disk Clone” feature will also help you backup the bootable SD card into an image file, better to save, if you like. The “Create Bootable Media” utility in this software will help you create a bootable device of a mini operating system (WinPE) with AOMEI Backupper Standard installed, realizing SD card copier portable.

The cloning software is user-friendly and easy-to-use, so it is suitable for all groups of users. Free download (safe and clean) and have a try.

Download Freeware Win 11/10/8.1/8/7/XP
Secure Download

How to Clone Bootable SD Card Step by Step

1. Connect the bootable SD card to a running Windows OS based computer and make sure it can be detected. You may need a SD card reader if there is no card slot. Connect the destination device as well if you want to clone bootable SD card to another.

2. Install and run AOMEI Backupper Standard. Click "Clone" and then "Disk Clone".

Disk Clone

3. Select the source disk, i.e. the bootable SD card.

Select SD card

4. Select the destination disk. You can clone the bootable device to SD card, flash drive, portable drive, internal disk, external disk, etc.

Select Destination Disk

5. On the summary page, preview the operation and specify customization settings in the lower-left pane. Click “Start Clone” after your confirmation.

Start Clone


👉 Edit partitions: it allows you to resize the partition size of SD card and make full use of unallocated space on the destination card.

  • Copy without resizing partitions: It will not resize the partition size.
  • Add unused space to all partitions: It will reallocate the unallocated space to each partition of the target disk, appropriate for the disk size.
  • Manually adjust partition size: It allows you to extend unallocated space to any partition on the destination disk you want. 

Add Unused Space

👉 Sector by sector clone: by checking this option, the software will copy every sector on the bootable SD card. Do not check this option if you clone from large SD card to smaller.

👉 You may need to set the cloned drive as Active in Disk Management if you cannot boot it successfully.

👉 To clone disk with command prompt, please upgrade to its Professional edition.

Bootable SD Card vs. USB Drive

Some users also wondering the differences between bootable SD card and USB drive while searching for the way to clone a bootable SD card. Here will give a brief comparison to them.

Secure Digital (SD) card and USB flash drive are both great removable storage in transferring and storing small amount of data. They use non-volatile memory to store files. When it comes to the question “which is better for bootable device, SD card or USB drive”, following two aspects should be taken into consideration.

  • Transfer rate. In general, a USB 3.0 flash drive is much faster than Classic 10 SD card in reading and writing speed. However, a Classic 10 SD card is possibly has same performance than a USB 2.0 flash drive.

  • Device capacity. You’ll get greater capacity on SD card device than a USB flash drive when you spend the same money.

One of the biggest differences between USB and SD card should be USB has the universal compatibility, which allows it to connect to any device with a USB port. While using a SD card, you may need a SD card reader when the device misses a SD card slot.

In a nutshell, SD card is fairly enough for common use. If you’re a speed and performance purchaser, USB flash drive is a good choice.


To clone bootable SD card to another SD card or USB flash drive, AOMEI Backupper Standard would definitely help you out within four steps only. Other than cloning bootable SD card, you could also clone hard drive to SSD or clone SSD to HDD in Windows 10 for better performance.

Meanwhile, it is a reliable backup and restore software which provides robust backup solution protecting your computer and operating system.