I keep getting offered the update to Windows 10 Creators Edition, but each time I accept the update it fails. On shutting down, the update runs to 88% complete and then the computer shuts down. On rebooting I get a message saying, 'We couldn't install all the updates.' In fact, nothing has been installed and the system is unchanged. I have tried updating drivers and I think everything is up to date.
Thanks. I tried your second suggestion first. I thought I had done that before, but this time, when I tried to run the update it said 'Updates were installed'. However the desktop looks exactly the same as it did before so I don't think I'm there yet. Anyway, I seem to be making some progress. I'll try your first suggestion when I have time.