You might remember all the partitions & external drive list connected to your windows machine in the selection box and accidentally select the boot drive instead of any other drives.
Although, it is very easy to identify all the drives, at times, the information about partition name or the drive letter is not shown properly due to which user may get confused and select a wrong drive.
Whenever you format your Windows partitions, the entire drive becomes inaccessible and cannot recognize by other windows systems.
And If you reinstalled the operating system to fix these issues, then also you will lose your personal data that are saved on C drive.
If you are troubled with the deletion of Windows partition unintentionally and you might have tried a lot of methods and still looking for a better option to recover files.
Generally, when a file is deleted from a drive, it only removes the file pointer and marks the space free for a new file storage.