I am trying to create new user logins on my laptop for my kids - I have successfully created user accounts that show up at startup, but I get the following error when I enter the passwords and try to login:

User Profile Service service failed the sign-in. User profile cannot be loaded.

I have tried multiple solutions from this forum, including regedit - their accounts do not show up on the ProfileList, and changing the permissions in C:\Users\Default to "Replace all child object permission entries from this object".

Also, deleted and re-added the accounts. Any other suggestions?!?!?!?!?!