Windows 10: HELP!! my lenovo computer only show domain admin login screen after disjoin domain

I'm sure I'm not the first to encounter this problem, but I found that no one posts. ScenesI have a domain administrator password and a local administrator password, so I should have full control of this computer. The regretful moment came when I logged into the domain administrator account and rebooted the computer after leaving the domain and joining the local workgroup, only a domain administrator login screen was left and my domain administrator password was not cached to the computer, whether I was connected to the company network or not. Most of the methods I searched are with stick k

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Unable to Login to Domain


Have Lenovo with Win 10 Home installed.
Run upgrade to 10 Pro.
Joined to domain.
Assigned 2-3 domain users to be able to login to this machine.
Failed to login with any domain users, says" The user name or password is incorrect. Try again".
Tried to use static IP, re-join to domain, change computer name, disable IP6 -- NO LUCK.
Tried to do drive mapping from command line using domain user, it works.
Please advise.
Domain is in Windows 2008 R2.

 

Question for some1 with windows domain knowledge

I know there isnt a whole lot of server admins here, but I thought I would ask.

At my work we had our office domain server go down due to windows corruption. Since they have still been able to login to their accounts using the server that went down. So they picked the ADMIN domain in the their drop down list.

Now that i'm rebuilding the ADMIN server I want to make sure they can use the same accounts and still have all of their my documents data and such. I want to know where is their ADMIN user data and authentication being kept. Would it be the other domain on the network? or on their local machines?

Note* there is no trust setup from what i can tell between the two servers. And their accounts dont exist in active directory on the other server.

Any help is appreciated

 

Domain Computers

I need to get an alert if i join or disjoin a computer from my domain. any body who has an idea is welcome to share.