Following your instructions I ave got as far as'Reset your PC'.
I don't know yet if it will present me with the UAC Prompt once I click on it or go straight ahead and do the business. What troubles me Juliana is that I am warned that all apps etc that didn't come with the PC will be erased. I have a lot of electronic stuff which will cause me a problem if they disappear!!
AS System Restore is available at the same point and that does not removce apps, should I try it first?
Neilpzz believes that if a Restore removes the passwords I should be able to deal with it. (You don't know me Neilopzz!!!)