If your computer operates slowly after a period of use, users often choose to upgrade the hard drive to an SSD for the operating system. However, if your old hard drive contains many essential software and important data, instead of installing Windows on a new hard drive, we will opt to move the operating system from the old hard drive to the new one. In this article, Mytour will guide you on how to transfer the Windows operating system from the old hard drive to the new one, saving you from the hassle of reinstalling software.

Method 1: Transfer the operating system from HDD to SSD using Norton Ghost.

This is a simple and low-error-rate method. First, create a Ghost image from the old HDD, and then use that ghost file to transfer to the new SSD.
Details on creating a ghost file and extracting a ghost file can be found in this article: https://Mytour/cach-tao-file-ghost-va-bung-file-ghost-bang-norton-ghost/
Method 2: Use Easus Partition Master software
Firstly, download the Easus Partition Master software here: https://www.easeus.com/partition-manager/
Step 1: Connect both HDD and SSD to the computer, then open the EaseUS Partition Master software and click on Migrate OS (1). After the status of the two hard drives is displayed, choose the target drive for transferring the operating system and click Next (2).

Step 2: Then, EaseUS Partition Master displays a warning about the deletion of the hard drive partition after transferring the operating system. Click Migrate to proceed.

Step 3: The software shows information about your Windows partition after the transfer. Click OK to continue.

Step 4: Wait for the data transfer process to complete, then click Apply to finish.

During the process of transferring the Windows operating system to a new hard drive, you may encounter the issue of the computer not recognizing the new hard drive with the new operating system. You can resolve this by disconnecting the old hard drive or accessing the BIOS settings to prioritize booting from the new hard drive with the new Windows operating system. Wishing you success!