Windows keeps a small recovery partition at the end of the system disk. It holds Windows RE, the repair environment that starts when the system will not boot, and a careless clone can leave it behind.
This guide explains what the partition does, how to keep it during an SSD upgrade, and how to rebuild it if the new drive has no recovery volume.
The recovery volume usually measures between 500 MB and 1 GB. It is small, but without it the repair options disappear from the advanced startup menu.

If reagentc reports the recovery environment as disabled, the partition may still exist. Enable it again before the clone so the layout is consistent.

Do not delete the recovery partition to make room. Removing it saves a gigabyte and costs every repair option Windows offers.
Qiling Disk Master copies every partition on the disk, including the recovery volume without a drive letter. Download it before you attach the SSD.
Step 1. Open Qiling Disk Master, choose Clone, and then select Disk Clone.

Step 2. Select the Windows disk as the source and click Next.

Step 3. Select the SSD as the destination and confirm that its data will be replaced.

Step 4. Review the layout, keep the EFI and recovery volumes, and tick Optimize for SSD.

Step 5. Click Proceed, wait for the copy to finish, then shut the PC down before you swap the drives.

If the recovery volume is missing, shrink the system partition slightly and create a new recovery partition, then run reagentc /enable. The fix takes a few minutes and restores the repair menu.
Yes, when you clone the whole disk. Cloning only the C: volume leaves the recovery partition behind.
Windows boots without it, but reset and advanced repair options stop working.
The recovery volume is hidden by design. Use reagentc /info to confirm its status.
Windows can create a new one in free space. Delete the old volume and let reagentc rebuild it.
Suspend BitLocker before the clone. The recovery volume can contain encrypted boot data.
Before changing drives, create a full system backup. Qiling Disk Master creates an image that includes the recovery and boot partitions.
Step 1. Open Qiling Disk Master and select System Backup to include Windows and the boot partitions.

Step 2. Save the image to a drive other than the target disk and start the backup.

Step 3. Click Proceed to start the system backup and wait patiently until it finishes. You can also tick Shut down the computer when the operation is completed to power off automatically.

Step 4. If the SSD will not start, restore the image to the original drive and try again.

The recovery partition is small but important, and a whole-disk clone is the simplest way to keep it. Confirm the volume with reagentc, size the SSD for every partition, and clone the full disk with SSD optimisation. After the swap, run reagentc /info and open the advanced startup menu. If the volume is missing, rebuild it in free space and re-enable Windows RE.
For more on Windows partitions, see How to Clone Only the OS Partition to a New SSD, How to Clone the Windows 11 System Reserved Partition, How to Clone a 2.5-Inch SSD to an M.2 SSD, and Cloned Drive Wont Boot Fix.