As my long title implies, I have a windows 10 (version 1803) and a folder in it that I want to share. I want to use a password so every time the other PC in my network wants to use the files he needs to enter the password (just for security).
In Control Panel > Network & Sharing Center > Change Advanced Sharing Settings > All Networks > I've checked "turn on password protected sharing"
And indeed I can see the folder in the network, and it asks me for a password.
But where do i configure what password I want to use?
41 Answer
I think that you have run into the problem that you cannot access a remote share using an account with no password. The serving PC has a user account with no password and this cannot be used to access a shared folder without some workarounds.
However, you actually want a password to be requested and so this account is no good to you. Create a user account on the sharing PC that does have a password and share the folder adding this user with read permissions at least.
This will allow the user to add a username and password pair that works which is what you want. However, I don't think that this will stop the user from saving the credentials so that she does not need to type them every time.