As I understand you want to keep the additional created partition even after performing the recovery.
If you will use the recovery disc then it will restore the default partition as it will not give you option to create the partition.
You can install Operating System from your own disc as not recovery disc then you can keep the partitions as if you want.
Did someone help you today? Press the star on the left to thank them with a Kudo! If you find a post helpful and it answers your question, please mark it as an "Accepted Solution".! This will help the rest of the Community with similar issues identify the verified solution and benefit from it.