Question Author
Thank you Chuck & AlBags for your answers.
Chuck, I started my computer this morning and they seem to have gone away.
Not being conversant in computer terminology, I was unsure whether to put 'upload' or 'download' I did at first put download but then changed it because I thought some expert would say I got it wrong.
AlBags, It looks as if the problem has now righted itself, but for future reference where does one find the Device Manager please?
All these terms may seem straightforward to you experts but to those who are not so skilled, they are not so clear, but then this is the whole purpose of this site, that being where you experts are good enough to spend your time helping out the ordinary guy to get out of their computer difficulties.
And it is a good job you are prepared to do so, once again thank you.