Unable to connect to a computer/user

I think I Yosemite on this iMac.

I can start the computer to the screen where a user connects, but we cannot go beyond that - it accepts the password and then only goes back to this screen.  This computer is used primarily for surfing the internet - no huge loss if I just restore it from scratch... BUT... maybe it means that the hard drive is bad, etc.?

Thank you!

Resolve startup problems-

Resolve startup problems - (2)

Resolve startup problems - (3)

Tags: Mac OS & System Software

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