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How to Transfer OS to SSD Without Reinstalling Windows

Updated on Dec 18, 2018 by Brithny to Partition Master

You got many ways to transfer OS from HDD to SSD without reinstalling Windows using EaseUS Partition Master: clone MBR to SSD, copy MBR to SSD or just clone to a smaller SSD.

If you want to transfer OS from HDD to SSD or install OS to SSD, EaseUS Partition Master is the best choice. It can transfer OS from HDD to SSD without reinstalling Windows.

Attention please:

  • All data on destination disk will be erased when you clone source hard disk to destination disk.
  • The destination disk may be smaller than source disk, but it should be equal to or larger than the used space on the source disk. If not, the copied process won't be able to continue.
  • Boot disk cannot be selected as the destination disk.
  • If the source disk contains the operating system, to ensure that you can boot your computer from the cloned disk, please connect the destination disk with IDE/SATA, for example, you can connect is an internal hard disk.
  • You'd better disconnect a disk (source disk or destination disk) after finish the clone and then boot your computer. Please don't boot with two disks connected. Otherwise, it may cause a booting problem.

How to clone the Entire Hard Disk to Another Without Reinstalling Windows

EaseUS Partition Master can clone an entire hard disk to another without reinstalling Windows; refer to the following guide:

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 Windows 10 is supported

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" and "OK" 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 "OK" to continue.

preview the lay out

Step 4: A pending operation of migrating OS to SSD or HDD will be added. Click the "Execute Operation" button and click "Apply" to start migrating your OS to a new disk.

apply the process

After transferring OS from HDD to SSD, you can also use EaseUS Partition Master to resize/move partition on SSD.

EaseUS Partition Master supports sector by sector and file by file disk copy. It also supports MBR disk copy and GPT disk copy.