Homegroup and folder access. Windows 7 mocking?

Question

System administration

I created a homegroup, successfully connected to it, shared a folder for the homegroup, and what do you think? It asks me for a username and password! What is the username and password? Not one computer has logins and passwords set. What does this poor man want from me? Screenshot: https://gyazo.com/876467a83efed531cdde2ce563d1f048

Answer 1

Well, of course, it should require a username and password.
Disable password access, give permission to guests.

Answer 2

Apparently someone turned off some service. It is necessary to search... Only on 1 of 3 computers nothing works. Even folders that can be shared by default for a group also do not respond. You click on them and nothing happens.

Answer 3

People tell you that the problem lies in guest access - check it (most likely it is your case)