That is normal. It is not a bug. It is a feature.
However, this might be of some help.
Removing Windows' password login is a simple case of unchecking a box in the User Account settings. Here's how to access that option. Also see: How to change your user account password in Windows 10.
Also, you could create a new user account with feautes you want. Then copy your user documents, bookmarks and photos to the new user account.