By Ailsa / Last update August 3, 2021

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The Problem to Clone M2 SSD

How to Clone M.2 SSD to M.2 SSD?

I recently bought a larger Samsung M.2 850 256GB SSD for my laptop to upgrade it, but how am I going to clone my current 120GB M.2 SSD to my new larger M.2 SSD? Is there an easy way to do it?


Before learning how to clone M.2 SSD to M.2 SSD, you may want to know these information about M.2 SSD. 

What is M.2 SSD?

M.2 SSD (formerly known as Next Generation Form Factor (NGFF) SSDs) are smaller and more suited for modern ultraportable devices (Ultrabooks and tablets) compared to older SATA SSDs as they allow for different module widths and lengths to adjust for different connectors. As a result, M2 SSDs are known for their small size and fast speeds.

960 Pro M.2 SSD

Why clone M.2 SSD to larger M.2 SSD?

Generally speaking, many small devices like laptops, Ultrabooks, and tablets use a small capacity M.2 SSD drive as their boot drive and HDDs for storage. Once you have the OS, applications, and games installed, you’ll soon find that the drive has run out of space or has very slow respond. To fix this you will need to clone M.2 SSD to larger M.2 SSD drive, then you will:

  • Get more storage space.

  • Speed up your system. 

  • Get shorter boot time.


Best M.2 SSD Cloner - AOMEI Backupper

To clone to M.2 SSD safely, you could try the specialist M.2 SSD cloner in Windows 10, 8, 7, Vista, and XP - AOMEI Backupper Professional -  that clones everything (including Windows OS, installed programs, and personal files, etc.) from a M.2 SSD drive to new M.2 SSD without affecting the original OS and data.  

Besides, it will clone to M.2 SSD with simple clicks, accelerate the overall performance for the M.2 SSD with SSD Alignment, and ensure it's bootable after clone without any issues.

Please download AOMEI Backupper Professional 30 day free trial and have it a go (Clone features in free trial can only be demonstrated, please upgrade to enjoy):

Download Free Trial Win 10/8.1/8/7/XP
Secure Download

How to Clone M.2 SSD to M.2 SSD Easily in Windows 10/8/7?

Here is the step-by-step guide to safely clone M.2 SSD to larger M.2 SSD in Windows 10/8/7:

✤✤Before cloning M.2 SSD to larger M.2 SSD, do the following✤✤:
Make sure that the new larger M.2 SSD is compatible with your motherboard, or consult your computer manufacturer.
Install the larger M.2 SSD correctly. Please disconnect battery or cut off the power supply before installing.
>> On a laptop, open M.2 slot, slide and fix the SSD.
>> On a desktop, open the host cover, find the M.2 connector (labeled with SATA/PCIe), and install the SSD.
Prepare an M.2 to USB adapter to connect the larger M.2 SSD with machine if there is only one M.2 slot on your computer. 
 Initial the M.2 SSD in Disk Management and format with MBR or GPT partition style according to your demands.

Step 1. Perform this M.2 SSD cloner after installation, select Clone > Disk Clone. Click System Clone to move operating system only to another M.2 SSD if you prefer.

Disk Clone

Step 2. Select the M.2 SSD system disk as the source disk and hit Next to continue.

Source Disk

Step 3. Choose the larger M.2 SSD as the target disk, and then press Next to continue.

Destination Disk

Tips: If there is any data on the destination M.2 disk, it will be erased during the cloning process. Please backup files before the M.2 SSD cloning.

Step 4. Tick SSD Alignment to speed up for M.2 SSD, and then press Start Clone to safely clone M.2 SSD to larger M.2 SSD in Windows 10/8/7.

Disk Clone Preview Align Ssd Checked

Usually, this only take a short amount of time, but the larger the disk is, the longer time will be. Because the cloning time depends on the data size of the source m.2 SSD drive.

★Helpful Tips
1. Sector by sector clone: It enables you to clone all the sectors (blocks) on the source M.2 SSD even it’s blank or bad sector, and much longer time will spend. Uncheck this option will skip the bad sectors if there exists, which helps to clone failing hard drive to prevent data loss.
2. You could click on Edit Partitions to resize the partitions on the destination disk automatically and you could fully use the storage space on the larger M.2 SSD. There are three options that you may need:
Copy without resizing partitions: it’s selected by default. There will be an unallocated space available after cloning smaller disk to larger disk if this option checked. Then, you could merge unallocated space to C drive or other existing partitions, or even create a new partition to store data separately.
Add unused space to all partitions.
Manually adjust partition size.
If you would like to adjust the partition size automatically during the cloning process, please select the second option or third option.

Edit Partitions

How to Boot from Cloned Larger M.2 SSD?

After the cloning process has finished, to boot from the cloned larger M.2 SSD correctly, do the following:

  • For the computer that only one M.2 slot: shut down your computer, remove the old M.2 SSD, and replace with the newly cloned larger M.2 SSD, boot from the cloned M.2 SSD.

  • For the computer that has more than one M.2 slot: Restart your computer and repeatedly press a certain key (usually F2, F10, F12, ESC, DEL, etc.) to enter BIOS or UEFI BIOS, change boot priority to the cloned larger M.2 drive.

Remember to replace the mounting screws to secure the M.2 SSD drive in your machine.

Install M.2 SSD

Now you have mastered cloning M.2 SSD to M.2 SSD, you might want to try cloning a larger HDD to smaller SSD, make sure the smaller SSD can hold all the data from the larger HDD, cloning a specific partition to the target disk using the Partition Clone function, or even cloning MBR disk to GPT disk, or vice versa.

Another secure way to perform M.2 SSD to M.2 SSD migration when there is only one M.2 slot is that backup M.2 SSD, replace smaller M.2 SSD with larger one, and then restore image to the larger M.2 SSD. AOMEI Backupper Professional could do the same task. For detailed steps, please refer to how to upgrade laptop drive via backup and restore.

Summing Up

To clone M.2 SSD to M.2 SSD safely, you need to first check that the new M.2 SSD drive is compatible with your motherboard and carefully install the drive correctly. Next, use powerful M.2 cloner like AOMEI Backupper Professional to clone the disk ensuring that it will boot without any issues.

As a matter of fact, this software is still a free SSD clone software, whch allows you to clone all kinds of SSDs to another one, such as, clone SanDisk SSD, clone SSD to Samsung SSD, clone  PNY SSD, clone Windows 10 to NVMe SSD, etc.

If you are using Windows Server 2003, 2008, 2012, 2016, 2019 (including R2), SBS 2003, 2008, 2011, please try AOMEI Backupper Server and follow the same steps above, and more advanced features provided, command line backup/restore/clone, universal restore, real time file sync, etc.