How to Transfer OS to New Hard Drive Without Reinstalling Windows

Daisy updated on Jul 02, 2020 to Todo Backup Resource | How-to Articles

Applies to: Migrate Windows 10 to a new hard drive/SSD, transfer Windows 7 to a new hard drive, move Windows 8 to a new drive, etc.

This page provides a detailed tutorial guide to help you transfer OS to a new hard drive without reinstalling the Windows OS and applications. Some follow-up tips about setting up computer boot from the new disk will also be included.

How Do I Transfer My OS to a New Hard Drive?

"I want to copy my Windows OS hard drive to a new hard drive and make my PC boot from the new hard drive. Which is the best?

Any program that can be used to simplify the whole process - moving OS disk to a new one without reinstalling Windows OS nor applications Thanks in advance for any advice."

System partition out of disk space is a common problem that may cause the computer to run extremely slowly. The most frequent way is to extend system partition with a free partition manager software. But what if your system disk is used up?

Usually, increasing the overall capacity of computers by adding a new disk is a way out. However, using the new disk as a second data hard drive is not the best workout. It will be wiser to transfer the entire OS hard drive to a new hard drive, switching the system disk.

So how to switch the whole system disk, including the OS, applications, and data to the new drive? Continue reading, you will find a reliable disk copy software that will help you out, moving OS with data to a new disk in only a few clicks.

How to Transfer OS to New Hard Drive

Obviously, you don't want to spend a lot of time and energy reinstalling the OS and all applications again on the new hard disk. Unlike data transferring, installed programs can't be moved to another drive by simply pressing Ctrl + C and Ctrl + V. 

An all in one resolution for you to transfer Windows OS, installed applications, and disk data to a new larger hard drive is to clone whole system disk to the new drive.

To do so, you will need a professional disk cloning software for help. EaseUS Disk Copy enables you to transfer OS to new hard drive with a few clicks. 

To guarantee a smooth OS disk migration process, please activate this tool to a pro version in advance. Click the button and gain an activation key immediately:

Designed with an intuitive interface, any levels of users can apply it to transfer OS to the new hard drive/SSD on Windows 10/8/7/Vista/XP without reinstalling operating system and applications. 

Follow through the OS disk migration process and set up your OS bootable on the new drive now:

#1. Transfer OS to New Hard Drive using EaseUS Disk Copy


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Step 1: Download, install and run EaseUS Disk Copy on your PC.

Click "Disk Mode" and select the hard drive that you want to copy or clone. Click "Next" to continue.

select the hard drive that you want to clone

Step 2: Select the destination disk.

Note: The destination disk should be at least the same big or even larger than the source disk if you want to copy or clone the source hard disk.

select the destination disk

Step 3: Click "OK" to confirm if the program asks to erase data on the destination disk.

confirm the message

Step 4: Check and edit the disk layout.

If your destination disk is an SSD drive, do remember to Check the option if the target is SSD.

check the diak layout

Step 5: Click "Proceed" to start the hard drive cloning process.

click proceed to start the cloning process

#2. Set Up Windows OS Boot from New Hard Drive

After cloning, you are not done yet. One more operation that you need to follow - setting up the computer, booting OS from new hard drive:

Step 1. Restart PC and press F2/F12/Del keys to enter BIOS.

Step 2. Go the boot option, change the boot order, setting OS to boot from the new disk.

Change boot drive, set up computer to boot from new disk

Step 3. Save the changes, exit BIOS, and restart PC.

Wait patiently to let the computer boot up. You will find that nothing changed on your computer, the OS is bootable, the applications are functional, and the data are safely saved on the disk. 

The only thing changed is that you have switched the disk and you can delete everything on the old disk, using it as a second data drive by now.


On this page, we covered a complete process of guiding you to switch system disk, moving OS to a new hard drive or SSD without reinstalling OS and applications using EaseUS Disk Copy.

Also remember to follow the OS drive setting-up guide, making Windows bootable on the new drive. The provided method on this page also works to migrate OS to SSD disk, such as migrating OS to M.2 SSD

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Frequently Asked Questions

Why choose EaseUS Todo Backup?

"The easiest way to protect your data and system files."techradar

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What is the difference between Clone and Backup? In what cases should I use Clone?

Clone will copy one disk to another or one partition to another (unallocated space is also supported). Usually, this option is used to upgrade the current disk by creating an identical copy. Backup will generate a .PBD image file containing the selected files or system that can be restored from the .PBD image if needed.

What is the difference between System Backup and Disk Backup?

System Backup will auto-select the system boot related partition(s) as the backup source to make sure the system image can be restored properly. Disk/Partition Backup will allow you to manually select a whole disk or speficy a certain partition as the backup source. You will get the same backup result as System Backup if you manually select the system and boot partitions with the Disk/Partition Backup option.

As a computer newbie, what features should I use to protect my computer?

You can use System Backup to back up the system and boot partitions, use Disk/Partition backup to back up the data partition and add plans to run an automatic backup. If you use the computer frequently or have software that may cause boot failure of the computer, we would suggest you back up the computer every 1 to 2 days. For other situations, you can backup the computer once a week. In addition, you can schedule File Backup to back up the files which are changed frequently.

What kind of storage service should I use to save my backup images?

EaseUS Todo Backup can save backup images to internal disks, external disks, network drives, or free cloud(Google Drive, Dropbox, and OneDrive) and CD/DVD. It is suggested to save the images to the internal/external/network drives to save time as those kinds of disks have a better read-write speed. It is suggested NOT to save the image on the source disk, because once the disk is damaged, all the files on the disk will become unavailable and you will be unable to restore the image.

As a company network administrator, what features should I use to protect our internal computers?

It is recommended that you use the SQL Backup feature to back up your company's SQL server and Exchange Backup feature to back up the Exchange server. In addition, you can execute System Backup to back up the system and boot partitions on every computer and set a plan to execute the backup once a day or twice a week to ensure that the computer can be restored timely when it has boot issues. File Backup feature can be used to back up important user data. If there are a large quantity of computers, you can purchase EaseUS Backup Center to manage the backups on the client computers centrally.

About EaseUS Todo Backup

Be it a file, system, partition, or disk, EaseUS Todo Backup will help you back up or clone the item and provide you with multiple backup plans.