By Emily / Last Updated May 12, 2023

After you migrate OS to SSD/HDD, you need to replace the current system disk with the cloned one and get into BIOS to set the new drive as the prior boot device to boot. Well, how to do it step by step? The following content offers very clear instructions for your reference.

Boot from destination disk on a laptop

1. First, power off your laptop completely and slip it over.

2. Use a screwdriver to remove some screws on the bottom case.

Remove Screws on Case

3. Remove the entire hard disk back cover panel carefully and you will see the inside of your laptop.

Open Back Cover

4. Locate where your current hard drive locates. Generally speaking, it is held by a hard drive caddy, which can help fasten the drive to your computer and prevent it from shifting.

Locate Disk Caddy

5. Then use the screwdriver to take the hard drive caddy from the computer case. Then you will find it is connected to your motherboard via a cable, unplug it carefully.

Take Out Caddy

Unplug Cable

6. Remove the screws on the caddy to take the hard drive out correctly.

Unscrew Caddy

Take Disk Out

7. Now, put your new hard disk into the caddy and do what is the opposite of the above steps. Reboot yout computer and it will boot from the destination disk.


Boot from destination disk on a desktop

Usually, a desktop allows you to install multiple hard drives on the host, which is different from a laptop. To install the new disk, do as following:

1. Turn off your computer. Make sure all keyboard and power lights are off and no fats are running.

No Lights On

2. Unplug the power cord as a safety measure. Press and hold the power button for about10 seconds to drain any lingering power. It is recommended to wait for another five minutes before proceeding to the next step.

Unplug the Cord

3. Remove all the peripherals, such as keyboards, printer, mouse, and so on. (Note: you can take a few pictures so that you can know how to reconnect them later).

Take Pictures

4. Now use the correct screwdriver size to remove screws.


5. Remove the cover and access the internal components of the computer. Locate the internal drive.

Locate Drive

6. Disconnect any cables and remove all screws that are used to hold the drive in place.

Remove Screws

7. Pull out the old hard drive and insert the new drive carefully. Secure it using the screws that were attached to the old one.

Insert New Drive

8. Then reconnect all the cables and peripherals. Put the cover back on.

When rebooting your computer, it will boot from the new disk. If you keep both the old and the new hard drive connected to your computer, to boot the computer from the cloned SSD/HDD, you need to get into BIOS to set the new drive as the prior boot device to boot. 

1. Reboot your computer and press a specific key (usually the DEL, ESC, F1, F2, F8, F9, F10, F11,F12 key) constantly to get into BIOS.

2. When you get into the BIOS, you can use the arrow keys to select the cloned SSD/HDD as the prior boot drive, and press Enter key to boot from it. Such as the following pictures:

Change Boot Priority

Change Boot Order

Change legacy/CSM boot mode when necessary

However, many users could not boot the computer from the destination disk successfully. The big possibility is that the computer is not using the correct boot mode.

If the cloned drive is an MBR disk, then you need to make sure the boot mode has been set as Legacy/CSM boot mode. Otherwise, the computer cannot boot from the drive.
If the cloned drive is a GPT disk, you need to make sure that the computer’s motherboard supports EFI/UEFI boot mode, and that it has been set as EFI/UEFI boot mode. Otherwise, you cannot boot from the drive successfully.

Fortunately, many computers with UEFI firmware will allow you to enable a legacy/CSM BIOS compatibility mode. If not, you can convert the disk from MBR to GPT without losing data or GPT to MBR for the current boot mode.

Tip: You may need to disable the Secure Boot control under Boot tab (or Security tab, or the Authentication tab) before changing boot mode.

1. When you get into BIOS, look for a setting called “UEFI Boot”, “Launch CSM”, change the boot mode from UEFI to Legacy/CSM: disable the UEFI Boot option and enable CSM Boot support.

* If you need to boot from UEFI, just keep the Launch CSM “Disabled”.

Launch CSM

2. Or, find the Boot tab, and change the boot mode to Legacy or UEFI according to your need with the arrow keys. Press Enter to boot from it.

Change Boot Mode

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