It was late last night when I finally logged off, 2 am. I slept in this morning.
Getting back on the computer, booting up, the machine went through a very long updating process.
The machine is now fully functional.
I think the updated did not announce itself last night. That is why the task bar was non operational. With the icons missing.
Everything is mysteriously well.
Thanks for offering your help everyone. I did run a sfc scannow and there were no corrupted files. I ran Avast and no viruses etc.....
Nothing but an update on the bootup this morning.
Dave