PassFab 4EasyPartition, the top partition manager for Windows, seeks to improve disk performance. It enables you migrate OS to SSD/HDD safely in just few clicks. Let’s check how to use this wonderful tool.

Part 1. Connect to a new disk first

Connect your computer to a new USB flash drive/HDD/SSD that you want to migrate to.

1. Single slot computer (laptop and all-in-one computer)

Before using Passfab 4EasyPartition, a new USB flash drive/HDD/SSD is required to connect to your device by using a SATA USB cable or external hard drive disk enclosure box.

2. Multiple slots computer (desktop and certain laptops with multiple slots)

Different from laptop, desktop typically enables you to install multiple hard drives on the host. Before using Passfab 4EasyPartition, install a new hard drive on your desktop.

Part 2. Perform system migration

  • Download and launch PassFab 4EasyPartition, click “Start” to start the process. partition manager
  • Select the source disk you are going to migrate from and select the target disk that you want to migrate to and then click “Start” to continue. select disk


    Usually the source disk refers to the disk where the system is located. Target disk refers to the external disk you inserted.

  • A risk pop-up windows will be displayed. Click “Sure” to proceed the next step. perform system migration
  • In the preview interface, please check the information of source disk and target disk, and click “ Start” to perform system migration. preview interface
  • System migration is in progress. Please wait for a while. migration in progress


    The migration process may take a few minutes or tens of minutes, depending on the data volume of the source disk. The more data there is, the longer it will take.

  • Migrate your system successfully. Click “Finish” to complete the process. migrate system successfully

Part 3. Boot computer from the new disk

By now, you have migrated your entire system to a new disk. Your computer can start properly. If you want to start your computer from the new disk, please check this video.

1. Single slot computer (laptop and all-in-one computer)

After migrating OS to the new hard drive, replace the original hard drive with the new one. The computer will automatically recognize the new hard drive and working normally.


If your computer cannot start properly, please refer to the startup steps of multiple slots computer in the following.

2. Multiple slots computer (desktop and certain laptops with multiple slots)

After migrating successfully, to boot from the new disk, please unplug the source disk from your host.

Due to different motherboards, some computers can start from the new disk normally while others may not. In this case, you are required to enter into BIOS to set the new drive as the boot device as follows:

  • Restart your computer and press the Boot key constantly and wait until the Boot menu occur.
    Boot Key Desktop Laptop Motherboard
    F12 ASUS, Acer, Founder, HP, Hasee, Haier, Lenovo, THTF Acer, BenQ, Dell, Emachines, eMachines, Fujitsu, Founder, GIGABYTE, Gateway, IBM, Lenovo, SAMSUNG, ThinkPad, Hasee, TOSHIBA, THTF, MSI Great Wall, Dell, TOSHIBA, Foxconn, GIGABYTE, Fujitsu, Gamen, Haier, IBM, Lenovo, Topstar, SONY, THTF, SAMSUNG, ThinkPad, Acer, HP, Hasee, Founder
    Esc Dell ASUS, Sony Great Wall, Foxconn, ESC, SOYO, MAXSUN, Colorful, SONY, SAMSUNG, Spark, UNIKA
  • Select the new hard disk and set it as the prior boot choice. Hit Enter to reboot from it. enter into bios