As ARM64 devices such as the Surface Pro 11 and Surface Laptop 7 equipped with Qualcomm Snapdragon X-series processors become increasingly popular, users' needs for system migration, disk upgrades, or data backups have also grown accordingly. Traditional full cloning requires copying all data on the disk, which is time-consuming. The Delta Clone feature provided by Hasleo Backup Suite can intelligently identify data blocks that have changed since the last full clone and only clone the changed parts, significantly reducing the time required for cloning. This tutorial will provide a detailed guide on how to efficiently perform Windows ARM64 system cloning using the Delta Clone feature.
Delta Clone is an advanced cloning technology in Hasleo Backup Suite. Its core principle is to detect the data differences between the source disk and the target disk using intelligent algorithms based on an existing full clone, and only synchronize the data that has changed since the last full clone to the target disk, thereby avoiding the overhead of full copying. This technology draws on the concept of incremental backup but is deeply optimized for cloning scenarios, enabling fast and resource-efficient data synchronization.
👍Core Technical Features of Hasleo Delta Clone:
The following table details the key differences between Delta Clone and Full Clone across several aspects, highlighting the unique advantages of each method.
| Delta Clone | Full Clone | |
| Working Principle | Only copies changed data blocks | Copies all sectors of the source disk |
| Cloning Speed | Fast (typically only 5%-30% of full clone time) | Slow (depends on total disk capacity) |
| I/O Load | Low (only processes changed data) | High (full disk read/write) |
| Power Consumption | Low (reduced data read/write) | High (full disk operation) |
| Target Disk Space Usage | Low (only stores incremental data) | High (complete data copy) |
| Independence | Low (depends on the previous full clone) | High (completely independent copy) |
| Partition Structure Tolerance | Low (requires identical partition structures on source and target disks) | High (allows modification of target disk partition layout) |
| Applicable Scenarios | Regular synchronization, quick cloning after frequent updates | Initial cloning, partition structure adjustment, cross-disk migration |
🎯Typical Advantage Scenarios for Using Delta Clone:
On ARM64-based devices such as Microsoft Surface Pro X, Surface Pro 11, and Surface Laptop 7, the Qualcomm Snapdragon X Elite/Plus processors bring unique architectural advantages and performance features. Delta Clone has a wide and practical range of applications on these devices, mainly including the following aspects:
Main Application Scenarios:
✨Special Advantages of Using Delta Clone on ARM64 Devices:
To ensure a successful Delta Clone operation, please note the following notes and limitations:
Version Requirements:
Supported Partition Types:
Disk Space Requirements:
Partition Structure Requirements:
⚠️Data Security Notes:
Below are the detailed steps for cloning a Windows ARM64 system using the Delta Clone feature in Hasleo Backup Suite:
Preparations:
Step 1. Run Hasleo Backup Suite. Click the "Clone" button in the navigation bar, then select "System Clone" in the operation area.

Step 2. Hasleo Backup Suite will automatically select all partitions required for Windows system cloning. After confirming the selection is correct, click "Next" to continue.

Step 3. Select the target disk that contains existing source system clone data, then check the "Delta Clone" checkbox and click "Next" to continue.

💡Tips: Delta Clone operation will overwrite corresponding sectors on the target disk. Please ensure there are no other important files on the target disk.
Step 4. Hasleo Backup Suite is now performing a Delta Clone, copying only the data blocks that have changed on the source Windows system to the target disk. The operation time depends on the number of data blocks that have changed on the source system disk. In extreme cases, the incremental clone can be completed in a few seconds.

✅Congratulations! You have successfully completed incremental cloning of your Windows ARM64 system using Delta Clone!
A: Delta Clone only copies data blocks that have changed since the last clone, while full clone copies all data on the source disk. Delta Clone is typically 5-30 times faster than full clone and uses less power.
A: Yes, Delta Clone requires an existing full clone on the target disk as a baseline. It detects changes from the source disk and copies only the incremental data to the target.
A: No, Delta Clone is available in Home, Professional, Server, and Enterprise editions. It is not included in the Free edition.
A: No, Delta Clone requires identical partition structures between source and target disks. For partition resizing, use full clone instead.
A: Delta Clone currently supports NTFS and ReFS partitions. For FAT32, exFAT, or other file systems, full clone method will be used automatically.
A: Delta Clone typically takes only 5-30% of the time required for full clone. After Windows updates, it can complete in just a few minutes versus tens of minutes for full clone.
A: No, the target NTFS/ReFS partition must be greater than or equal to the source partition size. The target non-NTFS/non-ReFS partition must be exactly the same size as the source.
Through the introduction in this tutorial, you have learned about the Delta Clone feature of Hasleo Backup Suite and its application on Windows ARM64 devices. The Delta Clone technology significantly improves cloning efficiency by intelligently detecting and copying only the changed data blocks.
With native ARM64 support, efficient Delta Clone technology, and comprehensive backup features, Hasleo Backup Suite is the professional choice for Windows data protection. Upgrade the edition of Hasleo Backup Suite now to experience the efficient cloning brought by Delta Clone!