.... if I want to carry on with Arduino what should I look out for?
It's ages since I got a new one, and I suppose all Wintel systems new at the local shop will be Windows 10?
Is the current Arduino IDE happy with Win10?
(I only recently upgraded Arduino 105 to 167, bit of a Luddite sometimes.)
edit.... shop down the road selling Win8.1 machines. I see a few threads about 8.1 and Arduino IDE being a problem. Presumably there's an IDE version that's ok with W8.1?
I totally agree with DrAzzy. Win 10 is just fine. I have no problems at all. (Or at least the same as under Win 7). Win 8/8.1 is terrible. It kept the good Windows, bad Windows cycle in tact. You can indeed still do the free upgrade to Win 10 but it's indeed still a Acer.