Miray Software's HDClone v4.3.6 Professional Edition is a specialized tool designed for high-speed disk cloning, data migration, and backup. While more recent versions like HDClone X.7 are now available at Miray Software, version 4.3.6 remains a notable release for its introduction of robust support for "Advanced Format" drives and virtual machine compatibility. Key Features of HDClone v4.3.6 Professional
The Professional Edition is built for technical users and sysadmins who require more than basic sector-by-sector copying.
Advanced Format (AF) Support: Automatically adjusts file systems during cloning to accommodate different sector sizes (512, 512e, 1Kn, and 4Kn), which is critical when migrating to modern high-capacity drives.
Virtual Machine Images: Unlike the standard versions, the Professional Edition can create dynamic VMDK (VMware) and VHD (Microsoft Virtual PC) images directly.
Full Hardware Speed: This edition removes the artificial speed caps found in the Free and Basic versions, allowing the software to operate at the maximum physical limit of the connected hardware.
Miray Virtual Disk: Includes software that lets you mount file images as virtual Windows drives to access individual files without performing a full restore.
SmartCopy Technology: Speeds up the process by copying only used data areas for FAT, NTFS, and HFS+ file systems rather than every empty sector. Why Professionals Use Version 4.3.6
While newer versions offer expanded features like Windows 11 support, some users specifically seek out v4.x versions due to licensing preferences.
Licensing Flexibility: Some users on Reddit have noted that older professional licenses were sometimes more flexible regarding bootable media usage on multiple client machines compared to stricter node-locked licenses in later iterations.
Legacy OS Support: It remains highly effective for maintaining older Windows environments (like XP or Windows 7) where modern cloning tools might encounter driver issues. Performance and Capabilities New Version: HDClone 4 - Press releases | Miray Software
5. Bootable Media Creation
The software allows users to create a bootable USB stick or CD/DVD.
- Why this matters: You cannot clone a system drive effectively while Windows is running on it. By booting into the HDClone environment (based on Linux or DOS), you can clone the system drive entirely without OS interference.
2. Speed and Efficiency
Because the "Reta Better" license often bypasses throttling algorithms present in trial editions, v436 utilizes the full bandwidth of your bus. Users report clone speeds of 24 GB/min on NVMe-to-NVMe transfers, which is significantly better than the standard Professional license's throttled performance.
2. Core Technical Features
1. Sector-by-Sector Cloning (Forensic Mode)
For IT forensic analysts, this is gold. HDClone v436 Professional accesses the disk at the lowest logical level, bypassing the file system. This allows you to clone deleted files, unallocated space, and hidden partitions that Windows Explorer never sees.
Practical tips for using HDClone Professional v4.3.6
- Always back up critical data before cloning.
- Use the “copy used sectors” mode when moving to a smaller but faster drive (e.g., SSD) if the filesystem allows.
- Create bootable rescue media before wiping the source machine.
- If cloning a failing drive, run in read-only/bad-sector-tolerant mode and clone to a larger target.
- Verify the clone by booting the target drive in the destination system or mounting the image.