If you want to replace a Western Digital hard drive, upgrade from a WD HDD to an SSD, or move Windows to a new WD drive, disk cloning can transfer your system, applications and files without a fresh installation.
You have two practical Windows options:
- Use Acronis True Image for Western Digital when a compatible WD-family device is detected and your disk meets its requirements.
- Use Wittytool Disk Clone when you need cross-brand support, partition cloning, OS-only migration or cloning to a smaller SSD.
Before starting, determine whether you are cloning a secondary data drive or the Windows boot drive. The correct workflow is different.
Which WD Disk Cloning Software Should You Use?
| Software | Choose it when | Free-use condition | Main limitations |
|---|---|---|---|
| Acronis True Image for Western Digital | A compatible WD-family device is detected and you want to copy an entire disk | Five-year license with current activation and redemption conditions | Entire disks only; basic MBR/GPT disks; no dynamic disks or multiboot; matching logical sector sizes required |
| Wittytool Disk Clone | You need full-disk cloning, one-partition cloning, OS migration, cross-brand support or migration to a smaller SSD | Free edition supports disk capacity up to 150GB | Windows only; dynamic disks and BitLocker-encrypted source disks are not supported |
| Rescuezilla or Clonezilla | You want a free offline tool that boots from USB | Open source | More preparation and a less convenient workflow for typical Windows upgrades |
When to Choose Acronis
Acronis True Image for Western Digital is the official option provided through Western Digital support.
A compatible Western Digital, WD, SanDisk, SanDisk Professional or G-Technology device must be detected for activation. Only one compatible device is required; the source and destination do not both have to be WD-branded.
The current Western Digital license terms provide five years of use with a compatible drive. The software must be downloaded and installed within 90 days of purchase or by December 31, 2029, whichever comes first.
Choose Acronis when:
- A compatible device is detected.
- You need to copy the entire disk.
- The disk is a basic MBR or GPT disk.
- Source and destination have matching logical sector sizes.
- You can use Acronis Rescue Media for a Windows boot-drive clone.
When to Choose Wittytool Disk Clone
Wittytool Disk Clone supports WD and other major drive brands, including Samsung, Seagate, SanDisk, Kingston, Crucial and KIOXIA. It works with HDDs, SATA SSDs, M.2/NVMe SSDs and USB-connected storage.
It gives you three migration modes:
- Disk Clone: Copy every partition from the source disk.
- Partition Clone: Copy one selected partition.
- Migrate OS: Transfer Windows and its required system partitions.
Choose Wittytool when:
- You want to replace a WD HDD with an SSD.
- Your source and destination use different brands.
- You only need to copy one partition.
- You want to migrate Windows without copying every data partition.
- You need to clone a larger HDD to a smaller SSD that can hold the used data.
The Free edition supports disk capacity up to 150GB. Paid editions support unlimited disk capacity.
Need an open-source offline cloning tool? Rescuezilla provides a more visual bootable environment, while Clonezilla offers more advanced controls but requires greater familiarity with disk and partition operations. Both are better suited to offline cloning than to users who want to clone a WD drive directly inside Windows.
Before You Clone a WD Drive
Complete these checks before selecting the source and destination.
1. Decide Whether You Are Cloning a Data Drive or System Drive
A data drive stores documents, games, media or other files but does not contain the active Windows installation. You can normally clone it inside Windows.
A Windows boot drive may also contain:
- An EFI System Partition
- A Microsoft Reserved Partition
- A Windows Recovery partition
- OEM recovery or diagnostic partitions
If you are replacing the Windows disk, use a complete disk clone or the dedicated Migrate OS function. Do not copy only the visible C: partition.
2. Back Up Important Data
Cloning overwrites the destination disk.
Back up:
- Important files on the source
- Anything needed from the destination
- BitLocker recovery keys
- A Windows recovery drive when replacing the system disk
Keep the original source unchanged until the new disk has been tested.
3. Identify Both Disks Correctly
Check the model and capacity of both drives. Do not rely only on “Disk 0” and “Disk 1,” because Windows may change disk numbers after hardware is reconnected.
You can view the disk information in Disk Management or run:
Get-Disk | Select-Object Number, FriendlyName, SerialNumber, PartitionStyle, SizeDo not initialize or format a disk unless you are certain it is the blank destination.
4. Check Capacity, Connection and Disk Condition
Confirm that:
- The destination can hold the used data and required partitions.
- The adapter matches SATA, M.2 SATA or NVMe correctly.
- A 3.5-inch HDD has sufficient power.
- Cables and USB connections are stable.
- The source is not a dynamic disk.
- The source does not repeatedly disconnect or report serious I/O errors.
Wittytool can clone a larger HDD to a smaller SSD when the used data fits. This applies to a standard clone. Sector-by-sector cloning requires enough target capacity to retain the source partition size.
Wittytool Disk Clone currently cannot recognize a BitLocker-encrypted source disk. Do not use this workflow while the source remains BitLocker-encrypted.
How to Clone a WD Drive with Acronis True Image
Acronis uses different procedures for a data disk and Windows boot disk.
Clone a WD Data Drive
- Keep the old source disk installed.
- Connect the new destination disk.
- Open Acronis True Image for Western Digital.
- Select Tools > Clone Disk.
- Select Manual.
- Choose the old disk as the source.
- Choose the new disk as the destination.
- Review the destination-erasure warning.
- Select the appropriate target layout.
- Review the summary and click Proceed.
Acronis Clone Disk copies the entire disk. It does not clone only one partition.
Clone a Windows Boot Drive
Western Digital’s current instructions require Acronis Rescue Media for a boot-drive clone.
The essential workflow is:
- Create Acronis Rescue Media from Tools > Rescue Media Builder.
- Shut down the computer.
- Install the new destination disk internally.
- Connect the old SATA source through the connection specified by WD.
- Boot from Acronis Rescue Media.
- Select Tools & Utilities > Clone Disk.
- Choose the old disk as the source.
- Choose the new internal disk as the destination.
- Start the clone.
- Shut down and disconnect the old disk.
- Boot from the new internal disk.
Acronis is not suitable for this workflow when the disk is dynamic, the system is multiboot, the logical sector sizes differ or you only need one partition.
How to Clone a WD HDD or SSD with Wittytool Disk Clone
Wittytool Disk Clone provides a Windows-based workflow for complete disk cloning, partition cloning and Windows migration. You can use it whether the WD drive is the source, destination or one part of a cross-brand upgrade.
For a complete HDD-to-SSD replacement, choose Disk Clone. Choose Partition Clone when you only need one data volume, or Migrate OS when you only need Windows and its required partitions. Download and following the steps below:
Step 1: Choose the Clone Mode
Open Wittytool Disk Clone and select:
- Disk Clone for the entire WD disk
- Partition Clone for one selected partition
- Migrate OS for Windows migration
For a normal HDD-to-SSD replacement, select Disk Clone.
Optional modes include:
- Sector by Sector: Copies every accessible source sector and requires sufficient destination capacity.
- Skip Bad Sector: Omits unreadable source sectors so the clone can continue.
Step 2: Select the Source Disk
Select the old HDD or SSD as the source.
Here, you can enable sector-level cloning, skip bad sectors, or check the UEFI BOOT option to convert the boot mode, ensuring the drive is fully compatible with the UEFI firmware of modern motherboards.
Step 3: Select the Destination Disk
Select the new HDD or SSD as the destination and click Start Clone. The destination will be overwritten. Confirm that:
- It is the intended new disk.
- Its existing data has been backed up.
- It has enough capacity.
- Its connection is stable.
Watch the Disk Cloning Video Guide with Wittytool Disk Clone:
Check the New Drive Before Erasing the Old One
For a Windows migration:
- Shut down the computer.
- Disconnect the old system disk.
- Install the new disk in its intended internal position.
- Start the computer.
- Confirm that Windows loads from the new disk.
Then check:
- Disk model and total capacity
- Required partitions in Disk Management
- Important personal files
- Applications and settings
- Several normal restarts
- Access to your separate backup
You can check Windows Recovery Environment with:
reagentc /infoDo not erase the old disk after the first successful boot. Keep it until the new disk, files, applications and partitions have been verified.
Common WD Cloning Problems
| Problem | What to check |
|---|---|
| Drive not detected | Check BIOS, Disk Management, cables, power, adapters and enclosures. In Wittytool, use Tools > Refresh Disk. |
| Clone fails or freezes | Replace unstable connections and check whether the source or destination reports read errors. Stop repeated attempts if the source is physically unstable. |
| New disk does not boot | Disconnect the old disk, check boot order, confirm all system partitions were copied and verify the correct system-disk workflow was used. |
| New disk shows the wrong capacity | Check Disk Management for unallocated space and review whether the target layout was resized during cloning. |
Frequently Asked Questions
Is Acronis True Image for Western Digital free?
It is provided for compatible WD-family devices under a five-year license. Current redemption conditions require installation within 90 days of purchase or by December 31, 2029, whichever comes first.
Do both disks have to be WD-branded?
No. Acronis activation requires one compatible WD-family device to be detected. Wittytool Disk Clone also supports migrations between WD and other major drive brands.
Is Wittytool Disk Clone free?
Yes. The Free edition supports disk capacity up to 150GB. Paid editions support unlimited disk capacity.
Can you clone a larger HDD to a smaller SSD?
Yes. Wittytool Disk Clone can clone a larger HDD to a smaller SSD when the destination has enough capacity for the used data. Use a standard clone rather than sector-by-sector mode.
Does cloning erase the source disk?
A correctly configured clone reads from the source without erasing it. The destination is overwritten.
Is the cloned SSD guaranteed to boot?
No. You must use the correct system-disk workflow and copy all required partitions. Test the new disk with the old disk disconnected before erasing the source.