I don't think this works for NOOBS (it probably would if you put in the Raspbian boot partition, but I believe Windows doesn't show this).
Why are you using NOOBS
- this only works with a Screen & keyboard - which are needed to setup Raspbian (or any OS on NOOBS) for the 1st time?
If you want headless install Raspbian
After reading a few more article I and checking my adaptor I realised that it was just that the switch (which until a few seconds ago I had no idea what it did) was causing the boot file to be read-only
1. This fixed the read only problem but as soon as I put the microSD in my RPI the SSH file was deleted.
IN the end I ended up reformatting the SD ...