I've rejoined the Dark Side, dropped ubuntu installed Windows 10
Sorry guys, I'm too dim to cope with ubuntu.
A couple of years ago at someone's suggestion here I tried Linux. I bought a new Dell laptop which came with ubuntu 14 already installed - £200.
All I used it for was some short documents and spreadsheets using Libre Office; and Firefox for browsing.
It upgraded to 16 and I had a bit of aggro getting 2 printers to work - a Canon 3550 and an HP1102w.
Last week it upgraded to 18 and after hours and hours of trying and following web advice I can't get the printers to work.
I thought I would try a dual boot and used the Windows 10 usb I had and it installed within about half an hour (had to change some partition thingys) and both printers worked.
Sorry Grub or sodu or whatever.