The command line reads c:\Windows\system32\NOTEPAD.exe"c:\users\louberk29\AppData\roaming\microsoft\Windows\startmenu\Programs\startup

I havn't had time to work on this further, but if I find a cure I will post it.

thanks again, I think that gives me enough clues to search for the problem file so will work on it

Thanks for the reply, however it doesn't seem to cure the problem, Windows 10 boots normally, and then Notepad loads and opens with the message "access denied" . The program can be closed, and the OS...

While I do not totally understand I have learned that there is a hidden attribute for the desktop.ini file that has somehow been removed and this causes notepad to open

Since installing windows 10 notepad automatically opens on Boot. I have found solutions to remove ini file on win 8, but don't seem to work on 10