I have posed my problem on six or seven user forums to try to avoid the error message I refer to in my previous post. I have received only one inappropriate reply so I have tried another approach and Googled the error message, this provided only two useful references out of a total of eight, I quote them below:
This describes the Windows steps to specify audio settings using Control Panel/Sounds and Audio Devices/Audio. I had already done this but the problem keeps recurring.
The second reference is here:
The topic is listed among a large number of FAQs about audio problems. After discussing the possibilities, the final piece of advice is that, if you can record audio in spite of the error message, then ignore it, but it does not have any suggestions if you cannot record. Using the USB connection, I can record music satisfactorily for more than 99% of an LP so I will tolerate that for a while until I can find some satisfactory alternative. I shall investigate the program Audacity and will report back when I have something useful to write.