Hi michgirl, Please let me know if you can access the local account without a password. If you cannot access the local account without a password, and you are getting an error message that password is incorrect you will need to reset the system back to the factory settings and then setup the local account.  Note: Restoring the original factory image erases ALL existing data. This includes files, folders, programs, drivers, E-mails, photos. Before performing a PC Restore, back up all personal files. If you do not back up your personal files, the data will be lost.  Follow the steps below to reset the account:    
Just got my new Dell XPS 8500 with Windows 8. When I set it up, I was assigned a user name, which was then linked to my Microsoft Account with my email address on record, as well as my password.  I did set my PC to start without password.  So tonight I wanted to try "switch to local user" and I did.  However, when I switched back to my MS account, it shows me with my email address as the user and it also shows that my Administrative Account is password protected.  When I now start my computer, it shows my original user name assigned during set up, but it stated my user name or password is incorrect.  I have to switch and sign in under my email account to get on.  YIKES!  How do I fix this???   Thank you much for your help.
Windows 8 Help