Now I don't know how to get back to Windows Startup.
I have tried F8 but it does not give me the option to start in safe mode.
If I could get back to Windows logon I know how to change the startup back in the Control panel - if only I could get back to it.
I don't know any administrators password but it seems to by pass this with nothing typed in and goes to:
How on earth do I get back to Windows logon from this dos prompt