Thank you kindly. That worked. I would never have got to that on my own. Like I said, I am no computer whiz. I am completely self taught in what I can do. Knitwear design (published), photography, what I can do on computers etc but it’s this type of things I fail on and need a people such as you to tell me.
I now have to decide whether or not to continue to use the internal SSD or use the external one. I have the ext ones for back up.
Someone here, I think, told me that just reading from the disc is very low wear on the disc. I was just thinking it was cheaper to replace a buggered ext than a whole MBPro especially now they have made them so one cannot even do any upgrading oneself. My previous one but one I was able to increase the ram and replace the HDD to an SSD myself.