How to Clone a Hard Drive to an SSD

This guide explains how to clone a hard drive to an SSD so Windows, programs, and files move to the new drive without a reinstall. You connect the SSD, pick cloning software, copy the entire drive, set the SSD as the boot device, and confirm the system starts from the new drive. The work takes 30 minutes to 2 hours depending on how much data is in use, and rates as moderate difficulty.

How Do You Clone a Hard Drive to an SSD?

The whole job is five steps: connect both drives, pick cloning software, run the clone, set the SSD as the boot drive, and expand the partition.

• Connect both drives. Leave the source drive in place and attach the SSD to a free SATA port, an M.2 slot, or a USB-to-SATA adapter so both are visible at once.
• Pick cloning software. Choose a disk-cloning program that copies every partition, including the hidden boot and recovery partitions Windows needs.
• Run the clone. Select the source as the disk to copy and the SSD as the destination, enable SSD partition alignment, and start the copy.
• Set the SSD as the boot drive. Enter the BIOS and move the SSD to the first position in the boot order.
• Expand the partition. If the clone left unallocated space on a larger SSD, extend the Windows partition in Disk Management to use the whole drive.

Connecting and mounting the new drive follows the steps in the guide to installing an SSD. Take a current backup of your computer before you start, since the clone overwrites the destination disk.

What You Need to Clone a Hard Drive to an SSD

A drive clone requires the new SSD, a connection method, and cloning software. The items below are listed in the order each one is used.

• A target SSD. The SSD must have capacity equal to or greater than the used data on the source drive.
• A connection for the SSD. A free SATA port, an M.2 slot, or a USB-to-SATA adapter connects the SSD during the clone.
• Cloning software. A disk-cloning program copies the source drive to the SSD with all partitions.
• A backup of important files. A current backup protects data before the clone runs.
• A Phillips screwdriver. A #2 driver mounts the SSD for an internal connection.
• Access to the BIOS. The BIOS boot order selects the SSD as the startup drive after the clone.

How Do You Prepare and Connect the SSD?

Connecting the SSD and confirming its capacity prepares the target before the clone runs. The SSD must hold the used data on the source drive, which is often far less than the source capacity.

1. Check the used space on the source drive in File Explorer under This PC.
2. Confirm the SSD capacity is equal to or greater than that used amount.
3. Connect the SSD to a free SATA port and SATA power, install it in an M.2 slot, or attach it through a USB-to-SATA adapter.
4. Boot into Windows and open Disk Management to confirm the SSD appears.
5. Initialize the SSD if it is new and unrecognized, then leave it unformatted for the clone.

A 1TB hard drive with 300GB used clones onto a 500GB SSD, because cloning copies the 300GB in use rather than the full 1TB. The connection methods match the steps in the guide to installing an SSD.

Which Cloning Software Should You Use in 2026?

Choosing reliable cloning software determines how the operating system and partitions copy to the SSD. A disk-cloning program copies every partition, including the hidden boot and recovery partitions Windows needs.

The free tool landscape changed in 2024. Macrium Reflect Free, long the default free pick, was retired on 1 January 2024 and replaced by the paid Macrium Reflect X. Several free disk-clone features in AOMEI Backupper and EaseUS Todo Backup also moved to their paid editions. The current options break down as follows:

A manufacturer bundle clones only when a drive of that brand is present, while Clonezilla and the paid tools work with any drive. For a system drive specifically, the free editions of AOMEI Backupper and EaseUS no longer clone, so a free clone means Clonezilla or a supported SSD maker tool.

How Do You Run the Clone?

Running the clone copies the operating system, programs, and files from the source drive to the SSD. The cloning software duplicates every partition so the SSD becomes a bootable copy of the source.

1. Open the cloning software and select the source hard drive as the disk to copy.
2. Select the connected SSD as the destination disk.
3. Confirm the software will copy all partitions, including the EFI System Partition and any recovery partition.
4. Enable SSD partition alignment if the software offers the option, since alignment affects drive performance.
5. Start the clone and wait for the software to report a successful completion.

Partition alignment positions the data to match the SSD page structure, which maintains write performance. Macrium Reflect X aligns partitions automatically when the destination is detected as a solid-state drive, while AOMEI puts SSD alignment in its paid edition.

How Do You Set the SSD as the Boot Drive?

Setting the SSD first in the BIOS boot order makes the system start from the cloned drive. The computer continues to load from the old drive until the boot order changes.

1. Restart the computer and press Delete or F2 during boot to enter the BIOS or UEFI setup.
2. Open the Boot section and find the boot priority list.
3. Move the SSD to the first position in the boot order.
4. Save the changes and exit the BIOS.
5. Let the system boot and confirm it loads Windows from the SSD.

A cloned SSD carries the same Windows installation as the source, so the boot order is the only change required. The BIOS boot menu, often opened with F12, also selects the SSD for a one-time test boot before the order is changed permanently.

How Do You Expand the Partition After Cloning?

Extending the Windows partition lets the cloned system use the full capacity of a larger SSD. A clone onto a bigger drive can leave the extra space unallocated unless the software resized the partition during the copy.

1. Boot from the SSD, then open Disk Management in Windows.
2. Find the SSD and look for unallocated space to the right of the Windows partition.
3. Right-click the Windows partition and choose Extend Volume.
4. Accept the full available space in the wizard and finish.
5. Confirm the C drive in This PC now reports the full SSD capacity.

Some cloning tools offer to resize the partition to fill the destination during the clone, which skips this step. If the unallocated space sits to the left of the partition, a third-party partition tool can move it before Extend Volume becomes available.

How Do You Verify the Boot and Repurpose the Old Drive?

Verifying the system boots from the SSD and then wiping the old drive completes the migration. The old drive is kept untouched until the clone is confirmed to boot.

1. Confirm Windows loads from the SSD and that programs and files are present.
2. Open Disk Management and confirm the SSD is the active boot disk.
3. Keep the old drive unchanged for several days as a fallback in case of a problem.
4. Reformat the old drive in Disk Management once the clone is confirmed stable, to use it as secondary storage.
5. Disconnect the old drive instead if it is to be removed from the system entirely.

A working clone leaves two copies of Windows on two drives. Reformatting the old drive after confirmation removes the duplicate and frees the original drive for files, while disconnecting it removes the second boot option entirely.

How Do You Confirm SSD Health Settings After the Clone?

Confirming TRIM is active and the partition is aligned after the clone maintains the long-term write performance of the SSD. A clone from a mechanical hard drive can copy settings tuned for a spinning disk rather than flash memory.

1. Open Command Prompt as an administrator and run the fsutil behavior query DisableDeleteNotify command to check TRIM.
2. Confirm the command returns a value of 0, which means TRIM is enabled on the SSD.
3. Open the drive properties and confirm scheduled defragmentation reports the drive as a solid-state drive that receives optimization, not defragmentation.
4. Verify the partition alignment in the cloning software log or in a disk utility, since a misaligned partition lowers write speed.
5. Enable AHCI mode in the BIOS if the source system used IDE mode, since AHCI supports TRIM and native command queuing.

A SATA SSD requires AHCI mode and active TRIM to sustain write performance over time. If the clone shows problems you cannot resolve, a fresh start is covered in the guide to a clean install of Windows, which installs the system new on the SSD instead.

How Do You Fix a Cloned SSD That Does Not Boot?

Diagnosing a clone that fails to boot isolates a missing boot partition or a wrong boot order before a second clone attempt. A non-booting clone shows a black screen, a no bootable device message, or a return to the old drive.

1. Enter the BIOS and confirm the SSD sits first in the boot priority list.
2. Confirm the BIOS boot mode matches the clone, since a UEFI clone needs UEFI mode rather than legacy mode.
3. Disconnect the old drive temporarily and attempt to boot from the SSD alone to isolate the boot source.
4. Re-run the clone with all partitions selected if the EFI System Partition was omitted.
5. Rebuild the boot records with the Windows Recovery Environment bootrec commands if the clone is otherwise complete.

A clone that omits the hidden EFI System Partition fails to boot, since the firmware finds no bootloader. Re-running the clone with every partition selected is the most reliable fix.

Common Mistakes to Avoid

A drive clone fails most often from a few specific errors. The mistakes below are ordered by how frequently they prevent a successful boot from the SSD.

• Choosing a target smaller than the used data. An SSD smaller than the used space cannot hold the clone.
• Leaving the wrong boot order. The system keeps loading from the old drive until the SSD is set first.
• Skipping SSD alignment. Unaligned partitions lower the write performance of the SSD.
• Omitting hidden partitions. A clone without the EFI and recovery partitions fails to boot.
• Expecting a free system clone from every tool. The free AOMEI and EaseUS editions clone data disks only, not the system drive.
• Wiping the old drive too soon. Erasing the source before confirming the clone removes the fallback copy.

Last Thoughts on Cloning a Hard Drive to an SSD

Cloning a hard drive to an SSD moves an entire Windows installation onto faster storage without a reinstall, because the clone copies every partition and the boot records. Confirming the SSD holds the used data, picking full-disk software, running the clone, setting the SSD first in the BIOS, and expanding the partition produce a drive that boots like the original. Keeping the old drive until the clone is confirmed protects against a failed boot.

The biggest change for 2026 is the software: Macrium Reflect Free is gone, and several free clone features moved behind paid editions, so a free clone now means Clonezilla or a supported SSD maker tool. Connecting the new drive follows the guide to installing an SSD, and a fresh setup instead of a clone is covered in the clean install of Windows guide. The full set of upgrade guides is collected in the PC tutorials hub.

Key Takeaways:

• Match capacity to used data: the SSD must hold the used space, not the full source size.
• A clone copies everything, including the EFI and recovery partitions, so the SSD boots exactly as the old drive did.
• Macrium Reflect Free was retired in 2024; a free clone now means Clonezilla or an SSD maker bundle.
• Free AOMEI Backupper and EaseUS editions clone data disks only; system or OS clone is a paid feature.
• Set the SSD first in the BIOS boot order, then expand the Windows partition to fill a larger drive.
• Keep the old drive for several days as a fallback before reformatting or disconnecting it.

Frequently Asked Questions (FAQs)