Rapidly clone Windows to another disk using the Delta Clone feature provided by Hasleo Disk Clone

July 11, 2025, Posted by Admin to Free Disk Cloning Software

This article explains what Delta Clone is and how to rapidly clone a Windows operating system to another disk using the Delta Clone feature provided by Hasleo Disk Clone, including the following content:

What is Delta Clone and its benefits?

Delta Clone technology is an efficient data backup and system replication solution that only copies the data blocks have changed since the last clone operation, rather than performing a full copy. Obviously, Delta Clone requires that an earlier clone of the backup source already exists on the target, and it brings the following benefits:

✦ 1. Reduced time needed for cloning: Only the changed data blocks need to be cloned, which significantly reduces the time needed for cloning.

✦ 2. Reduced IO load: Compared to full cloning, only the changed data blocks need to be cloned, which significantly reduces the IO load.

✦ 3. Reduced power consumption: The significant reduction in IO load leads to a reduction in power consumption.

✦ 4. Reduced impact on the source operating system: The impact on the source operating system will be reduced due to the reduction in IO load and time required for cloning.

Overview of Delta Clone feature in Hasleo Disk Clone

The purpose of Delta Clone is to only clone data blocks that have been changed relative to a historical benchmark point, so the most important technology for Delta Clone is how to quickly and effectively detect the changed data blocks. With an in-depth understanding of file system technology, Hasleo has developed advanced block change detection algorithms that can efficiently find changed blocks.

The Delta Clone feature provided by Hasleo Disk Clone can be used to clone a Windows operating system, but it has the following limitations:

✦ 1. Hasleo Disk Clone's Delta Clone feature currently only applies to cloning NTFS partitions, a full clone will be performed for non-NTFS partitions.

✦ 2. The size of the destination NTFS partition must be greater than or equal to the source NTFS partition, and the non-NTFS partition must be equal to the source partition.

✦ 3. The source NTFS partition and the target NTFS partition must have the same cluster size.

✦ 4. All Windows operating system related source partitions (system, boot and recovery partitions) must have a corresponding copy on the destination drive, and the order of the copies of these partitions must be the same as the order of the source partitions.

 

Tutorial on cloning a Windows operating system using the Rapid Delta Clone feature provided by Hasleo Disk Clone.

Step 1. Install and run Hasleo Disk Clone, click "System clone", Hasleo Disk Clone will automatically select all partitions that need to be cloned for Windows system cloning, then click "Next".

select source disk for delta clone
 

Step 2. Select the destination disk that already has a clone of the source Windows operating system and check the "Delta Clone" option, then click "Next".

select destination disk for delta clone
 

Step 3. Hasleo Disk Clone starts delta cloning the changed data blocks from the source Windows to the destination Windows.

Progress of delta cloning disk
 

Step 4. Delta cloning completed. The time required to complete the delta cloning is related to the amount of changed data blocks on the source Windows. In extreme cases, you can delta clone the source Windows to the destination Windows in a matter of seconds.

Delta cloning of disk is complete

Conclusion

As shown above, you can use the Delta Clone feature provided by Hasleo Disk Clone to rapidly clone a Windows operating system to another disk incrementally.

If you are looking for a software that can backup Windows, disk or partition, we recommend that you try our fee Windows backup software - Hasleo Backup Suite.

 

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