By Bryce / Last Updated December 3, 2020

"Can I clone a hard drive to a larger drive?"

"The capacity of my current hard drive with Windows 10 installed is not enough and I encounter Low Disk Space warning. I'm unwilling to delete files or uninstall applications and I wanna upgrade to a larger hard drive. As I don't want to make Windows 10 & all other applications reinstallation on the larger disk, I intend to clone the smaller drive to a larger drive. Is it possible? How can I do it?"

Clone hard drive to a larger one step-by-step

In fact, it's a rather easy task for hard drive cloning software to clone a smaller drive to a bigger one. Here AOMEI Partition Assistant Professional is recommended. It's "Disk Clone Wizard" function allows you to clone hard drive to a disk of different sizes (larger, equal, or smaller) with secure boot. And it's "Migrate OS to SSD" function supports you to clone only system related partitions (data partition won't be copied) to another disk. Besides, if you clone to SSD, it can make 4K alignment for SSD to improve performance. Now, have a closer look at how it clones hard drive to a larger drive.

Download Demo Win 10/8.1/8/7/XP
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If you clone MBR system disk to GPT or versa vice, you need to enter BIOS to change boot mode (Legacy BIOS and UEFI), so that you can boot from the cloned hard drive successfully.
All the data on the destination disk will be overwritten; you can make a backup using AOMEI Backupper before cloning if there are important files on it.

Step 1. Connect the new larger disk to your computer. Install and run AOMEI Partition Assistant Professional. Then, go to "All Tools" > "Disk Clone Wizard".

Copy Wizard

Step 2. Then It will pop up a window where you can choose a way to clone to a larger drive. The first way is recommended. However, if you clone hard drive with bad sector, please select the second way.


Step 3. In the window like the following screenshot, you need to select the smaller hard drive as your source disk.

Source Disk

Step 4. Choose the larger drive as your destination disk. If the destination disk is SSD, tick the box before Optimize the performance of SSD to align SSD partitions.

Target One

Step 5. Here you can adjust partition size on the destination drive.


PS.: If you clone hard drive to smaller SSD, the option "Clone without resizing partitions will be greyed out".

You’ll be prompted by a note about how to boot from the cloned disk after cloning, read it and keep it in mind.


Step 6. You’ll return to the main interface. Click "Apply" and "Proceed" to commit operation.


✐ Note: AOMEI Partition Assistant Professional Edition is for Windows 10/8.1/8/7, XP, and Vista; When you need to clone disk to larger disk in Windows Server 2019/2016/2012 (R2)/2008 (R2)/2003, you can employ AOMEI Partition Assistant Server Edition.

Wrap things up

Whether you want to clone hard drive to a larger drive or smaller drive, AOMEI Partition Assistant Professional can be very helpful. And it comes with various other functions as well, like converting disk between MBR and GPT without deleting partitions or data loss, splitting a large partition into two smaller ones, quickly partitioning a hard drive within 2 clicks, recovering lost partition, etc.