A clone may fail when the source disk has bad sectors or unstable connections. Treat the old drive as fragile and avoid unnecessary writes.

Clone to a new healthy disk with enough capacity. If the source drive is badly damaged, file recovery may be safer than repeated full-disk cloning attempts.
Windows tools are useful for simple checks, but Qiling gives you a visual preview before disk changes. Use it when the operation affects partitions, boot records, cloned disks, USB capacity, or files you cannot afford to lose.
Step 1. Open Qiling Disk Master, go to the tools page, and choose the disk clone option. This starts the clone wizard instead of a backup or partition resize task.

Step 2. Select the source disk that reports the read-sector error. Confirm it by disk size, model, and partition layout. If the old disk has bad sectors, reduce other writes and clone to a healthy disk as soon as possible.

Step 3. Select the destination disk. Make sure it is the new healthy drive, because the clone process will overwrite the selected destination.

Step 4. Preview the clone layout, adjust partition size if needed, and click Proceed. Keep the computer powered on until the clone finishes.

Handle the visible symptom first, then protect data before any delete, format, resize, or clone action. If the disk layout is confusing, use a visual tool and confirm the target before you click Proceed.