By Lily / Last update November 11, 2021

Will I lose everything if I replace my hard drive?

When asking how to replace a hard drive, you may be more concerned about how to replace your hard drive without losing data because computers have been a part of our lives to some degree, keeping many different types of important data. 

Besides, if it is possible to change a new HDD or upgrade hard drive to SSD without data loss, that means you can avoid reinstalling system as well as various programs. Fortunately, this is not a dream. You will not lose anything if you do the replacement with AOMEI Backupper.

Replace disk without losing data via AOMEI Backupper

AOMEI Backupper Professional is a professional backup and recovery software equipped with a lot of advanced features such as incremental backup, universal restore, etc. Among them, clone should be an ideal choice to replace your hard drive without losing data. 

Once the drive has been cloned, just simply remove the existing drive and replace it with the new one. You are allowed to replace larger hard drive with smaller SSD as long as you migrate only used parts.

What’s more, the whole procedure of clone will be quite easy even if you’re not a computer expert. Let’s start. In the first place, download AOMEI Backupper Professional and install it on your computer.

Download Free Trial Win 11/10/8.1/8/7/XP
Secure Download

Step 1. Connect the new drive to your computer and then launch AOMEI Backupper.

Step 2. Click Clone on the main interface and then Disk Clone. Well, if you only need to migrate operating system, you can choose system clone.

Choose Disk Clone

Step 3. Select your existing drive as the source disk.

Choose Source Disk

Step 4. Select the destination disk.

Choose Destination Partitioned Hdd

Tip: A window will pop up to inform you that data on the destination disk will be overwritten. So if you have important documents there, please back them up first. Click “Yes” to continue.

Step 5. Now comes the operation summary. Confirm the operation and click Start Clone. Before starting clone, there are three more options in the bottom.

  • Edit Partitions: it enables you to adjust partition size on the destination disk in advance. While if you’re not sure about that, you can change partition size in Windows 7/8/10 handily whenever you want to via AOMEI Partition Assistant.

  • Sector by sector clone: it will copy all sectors no matter they’re used or not. If you are going to clone your hard drive to a smaller disk, do not tick this option.

  • SSD Alignment: if the destination disk is an SSD, use this option to improve its reading and writing speed.

Disk Clone Preview Nocheck

Note: This operation will not cause data loss. However, data loss can also be caused by other unexpected factors such as inappropriate operations and battery failure. Therefore, it is highly recommended to backup data before replacing hard drive.

The final step to replace your hard drive without losing data - swap drives. When doing this, make sure that you understand any information regarding your warranty. Any unauthorized work on your system may void the warranty of system manufacturers. Plus, review the safety instructions inside your system product manuals before working.

✍ Note for secure boot: 

If you've cloned the disk with operating system installed, you can boot up Windows from the cloned drive by changing boot priority in BIOS or switching boot drives directly.