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Barry - it won't boot up at all, I can't get as far as the safe mode option.
curlygirlies - it was beep - silence - beep. Not loud and didn't sound like a beep that was warning of imminent danger.
It is 8 or 9 years old and has been slowing down but I had it tweaked to my satisfaction.
I am lucky that I have this new laptop, my Chromebook (a gift from my favourite/only sibling) and my Kindle fire.
I will have a look at the laptop and see if there is some fur from the late, great Frankie - he spent enough sleeping on the laptop.