Finding out the password for admin?

I was setting up this computer and the main computer was on a workgroup. Well I set up the workstation, but the workstation is on a domain and I changed the domain to a workgroup and then restarted the computer. Well now windows is asking me for the password. I am not sure what that password is. I figure that it wants administrator as the user name, but is there a way that I can find out what the password is?

 

Nope, before you shut down you were supposed to set up your account on the domain and set a password for your name and account .
Try booting to safe mode and logging in as you had before to reverse your actions, or go to the server and set up your account there.

 

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