How to Transfer OS to SSD Without Reinstalling Windows

Brithny updated on Sep 23, 2020 to Partition Master | How-to Articles

Personal buyers and computer manufacturers are likely to choose SSD as a thinner, lighter and faster alternative to HDD in recent years. Undoubtedly, SSD has become the trend of top-rank hard drive storage choices in 2019 and will be in the next few years. After investing some money in a new SSD, what are you going to do subsequently? Replace the old HDD with the new SSD, I guess. There is a way to transfer your Windows 7,8, or 10 installations to an SSD without reinstalling Windows. It's easier and more energy-efficient than fresh install OS, as long as your current operating system runs well and you don't need to install Windows OS on the SSD from scratch.

PreparationMake Eveyrthing Ready forTransferring OS to SSD

Most people are interested in finding a hard drive migration software to directly move OS from one hard drive to the other. It takes only a few steps but saves a great amount of time. Hence, if you're looking for a capable but easy-to-use OS migration software, think EaseUS Partition Master as a dependable and convenient choice. It can transfer OS from HDD/SSD to SSD without reinstalling Windows on your own.

Before we start officially, let's check some preparatory works. After getting ready with all the mentioned points, just begin right away with the procedure.

1. Connect or Install New SSD to PC

If you're using a desktop, you got many ways to connect a second solid-state drive to your computer.

  • Install the SSD alongside your old hard drive in the same machine.
  • Connect the SSD via a SATA-to-USB cable to your computer.
  • Use an external hard drive enclosure for a connection.

Normally, laptop users prefer to use the two latter ways.

2. Clean Usless Large Files on Hard Drive

SSD is generally smaller than HDD, it's a great idea to release some disk space or clear up some system junk files before migrating OS to a new hard drive. You can tidy up your current hard drive by using the EaseUS Tool M.

It's easy and light in cleaning computer junk files & large files with the following steps:

Step 1. DOWNLOAD and install EaseUS Tools M. Select "System Cleanup" on the main screen.

click system cleanup

Step 2. Select the type of junk files you want to scan and click "Analyze".

analyze junk files

Step 3. Identify and select useless files and click "Clean up" to remove those files from your PC or laptop.

click clean up to remove junk files

3. Back Up C Drive Data

It's a wise option to back up C drive data before OS migration. We can't expect everything goes safe and sound all the time, but we can arm ourselves with a complete backup. 

A simple Ctrl C + V or Windows backup software can both work for C drive data backup.

4. Download OS Migration Tool

This is the key step. Simply click the download button here and tt only takes a few seconds to download the OS migration tool - EaseUS Partiton Master.

Download Now

 Windows 10 is supported

After this, you may move the the next part and learn how to transfer OS from HDD to SSD

ProcedureHow to Migrate/Transfer OS from HDD to SSD

Three tips on using EaseUS Partition Master in the right way:

  • Select new SSD as the destination disk.
  • All data on the SSD will be erased while moving OS from HDD to SSD.
  • The SSD can be smaller than OS drive, but it must contains equal to or larger space than the used space in system C drive.

Now, let's have a look about how to migrate your Windows OS form HDD to SSD without reinstallation:

Note: The operation of migrating OS to SSD or HDD will delete and remove all existing partitions and data on your target disk. If you saved important data there, back up them to an external hard drive in advance.


Step 1: Run EaseUS Partition Master, select "Migrate OS" from the top menu.

select migrate os

Step 2: Select the SSD or HDD as the destination disk and click "Next".

Warning: the data and partitions on the target disk will be deleted. Make sure that you've backed up important data in advance. If not, do it now.

Then click "Migrate" to continue.

select the destination disk

Step 3: Preview the layout of your target disk. You can also click the disk layout options to customize the layout of your target disk as you want. Then click "Proceed" to start migrating your OS to a new disk

preview the lay out

Besides, you can also use EaseUS Partition Master to resize/move partition on SSD.

EaseUS Partition Master supports clone a disk in sector by sector and file by file disk leveal. You can also use it to clone and upgrade MBR or GPT disk.

Follow UpBoot PC on SSD after OS Migration

IMPORTANT: Once you complete the OS migration process, remember to set new SSD as the boot drive.

There are two ways to handle the SSD after the OS transfer.

1. Remove Old OS HDD, Use SSD as Boot Drive on PC

This is an easy case. After migrating OS from the old drive to the new, this time take out the HDD and leave the cloned SSD as the boot disk. 

2. Set SSD as Boot Drive

Most PC and laptops all contains two disk slots - one hard drive slot and one SSD slot. Therefore, you can choose to use the SSD as a boot drive on your computer. 

Step 1. Restart PC and press F2/F8 or Del to enter BIOS.

Step 2. Move to the Boot section, set the new SSD as the boot drive.

Step 3. Save the changes and restart PC.

Set PC to boot up from new SSD after moving OS to SSD

After this, your OS will automatically run from the new SSD and you'll experience a faster computer with better performance then.


On this page, we covered the whole process of how to migrate or transfer Windows OS from HDD to SSD without reinstalling Windows OS. EaseUS Partition Master with its Migrate OS to SSD feature makes everything easy for OS migration.

Download Now

 Windows 10 is supported

And don't forget to set the new SSD as the boot drive after moving OS. If you have further disk management needs, turn to EaseUS Partition Master for help. 

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Frequently Asked Questions

Why Choose EaseUS Partition Master?

"I've used Partition Master Professional many times to create, delete, format, move, rename, and resize partitions."PCWorld

"Partitioning tools have come a very long since the days of complicated command line utilities and EASEUS Partition Master is one of the most advanced programs available."TECH ADVISOR

"I love that the changes you make with EaseUS Partition Master Free aren't immediately applied to the disks. It makes it way easier to play out what will happen after you've made all the changes."Lifewire

Will the "Migrate OS" feature transfer the Windows system files only or the whole C drive?

To ensure that the migrated system will boot normally, the Migrate OS feature will transfer all the files in the system and the boot partitions. Generally, the boot partition is the C drive so the transfer will include all the files in C.

Does EaseUS Partition Master license apply to multiple computers?

The license of Partition Master Professional and Server editions can be used on 1 computer only, while that for for the Technician and Unlimited editions can be used on multiple machines.

What is the difference between EaseUS Partition Master Trial version and the Free version?

Free is for home users only, with most basic functions available such as partition resize and clone. While trial can help you understand how this product works and test what a full license can do on a business or server OS machine.

Will it cause any data loss after resizing the partition in EaseUS Partition Master?

Generally, it will not cause any data loss or boot issue by resizing a partition. However, in order to protect your data, we suggest that you backup the partition before resizing, in case of any unexpected situations such as power outages, computer hardware failures, etc. You can use EaseUS Todo Backup to backup the partition and its trial version is fully functioned for 30 days.

What should I prepare before resizing the partition?

On the partition that is going to be operated, there might be some files being occupied by other programs. To ensure a successful operation, we suggest that you close all the unnecessary software before resizing that partition. Otherwise, EaseUS Partition Master will detect the partition being locked by the other software and require a reboot to resize the partition under boot mode.

About EaseUS Partition Master

All-round disk & partition management software for personal and commercial use. Let it manage your storage drive: resize, format, delete, clone, convert, etc.

Video Tutorial

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