When Clonezilla does not list a laptop NVMe SSD, first determine whether the missing drive is the internal source or an external replacement. Their causes differ, and changing BIOS storage mode without preparation can make Windows unbootable.
Open UEFI/BIOS and check whether the internal SSD appears. For a replacement connected by USB, verify the enclosure supports NVMe rather than M.2 SATA, try another port or cable, and check Disk Management on a working Windows installation. If firmware cannot see the internal SSD, software alone cannot solve a loose, unsupported, or failed drive.
Some laptops route NVMe through Intel RST/VMD or a RAID controller. A boot environment may need support for that controller before it sees the disk. Record the current firmware settings, save the BitLocker recovery key, and consult the laptop maker before changing VMD, RAID, or AHCI. Changing the mode casually can stop the installed Windows system from booting.
Try a current official Clonezilla release and check whether its live environment detects the SSD. If not, see whether Windows and Qiling Disk Master detect both source and destination. A different tool cannot clone a drive that it also cannot read. If the source is unstable or missing intermittently, protect important data or seek hardware support first.
Use Qiling as an alternative only after both NVMe drives appear correctly in its disk list. Record their exact capacities and models before proceeding.
Step 1. Once Windows detects both NVMe drives, attach the target with a compatible NVMe enclosure and open Tools and utilities > Disk/Partition clone. Select the whole source disk row, not a single partition.

Step 2. Select the original disk by model and capacity, then click Next. The pictured source is a sample data disk; choose your actual source, including its small boot partitions when migrating Windows.

Step 3. Select the destination by model and capacity and click Next. The destination will be overwritten.

Step 4. Review the layout. Check that the destination is large enough for all selected partitions, select SSD optimization when offered, click Proceed, and confirm the overwrite warning.
Step 5. Wait for completion without disconnecting the drives. Check the copied data; if the clone is a boot disk, install it internally and test a first boot with the old disk disconnected when possible.
If the source repeatedly fails to read, stop retries and decide whether professional recovery is warranted. Do not assume the new drive is bootable solely because files are visible.
Separate firmware, enclosure, and controller problems before trying another cloner. Preserve the original storage mode and BitLocker information.