An external drive may contain an old recovery partition from cloning or PC recovery media. Remove it only if you are sure the drive no longer needs to boot or restore a system.

After deleting the recovery partition, create a new partition or extend the main external drive partition into the freed space.
Delete the recovery partition only after confirming it is on the external hard drive. If the partition belongs to the internal system disk, removing it may affect Windows recovery or startup repair.
Connect the external hard drive and open Qiling Disk Master. Identify it by brand name, total capacity, disk number, and existing partitions. Disconnect other removable drives if you are unsure.

Copy important files from the external drive to another safe location. Deleting a recovery partition normally removes only that partition, but checking the backup first prevents accidental data loss.

Right-click the recovery partition on the external drive and choose Delete. Do not choose any EFI, System Reserved, or Recovery partition on the internal Windows disk.

After the partition becomes unallocated space, either extend the main external-drive partition into it or create a new partition. Use NTFS for Windows-only storage or exFAT if the drive must also work with macOS or other devices.

Review the pending operations carefully. The queue should show changes only on the external hard drive. If it is correct, click Proceed and wait until the operation 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.