Delete a partition is not a big problem. You need Vimx Partition Recovery to help you, which specializes in recovering data from deleted partition.
After the recovery process, you could create a new partition to replace the original one like this:
Right click “Computer Management” to select “Manage”=> Choose “Disk Management” => Right click the deleted partition and hit “New Logical Drive” on the list => format it.
Tips for you to recover data:
1. Stop using this drive immediately to avoid overwriting the original data, which can make your data gone permanently.
2. Save your recovered files on a different storage device in case of recovery failure.
3. Back up you data in a different drive in case of similar problem.