Reinstall Windows 10 on partitioned external SSD

[enriques]

I installed Windows 10 on an external SSD and after doing the installation I made a partition.
I had to reinstall Windows 10 on the same SSD but WinToUsb didn't give me the chance
of choosing the partition and therefore I lost what I had in the partition.
I ask, is there the possibility to do the reinstallation without losing the partition?
Thank you very much indeed.

[admin]

I installed Windows 10 on an external SSD and after doing the installation I made a partition.
I had to reinstall Windows 10 on the same SSD but WinToUsb didn't give me the chance
of choosing the partition and therefore I lost what I had in the partition.
I ask, is there the possibility to do the reinstallation without losing the partition?
Thank you very much indeed.

WinToUSB have a "Keep the existing partition scheme" option to allow users to use a custom partition layout scheme, you can use this option to install Windows to a specified partition on an external drive, please note that this feature is only available in the paid version.