I had a Homegroup defined on Windows 7 Professional before upgrading to Windows 10 Professional. The annoying thing is right now I don't have an option to create a new homegroup, I only have an option to join the homegroup that was created on this same machine in Windows 7. The problem is I don't know the password and I'm not giving the option of changing the password or removing the Homegroup. Is there anything I can do to get out of this situation?