Hi Lingyai,

I'd highly recommend installing 2018 over the 2016 version, and then I'd get rid of the 2014 version, as it won't be needed. There's no need to keep them separate.

If you really want three separate installations, you'll want to make a BB 2018 folder, copy the contents of the 2016 version into it, then install 2018 to that folder.

Thanks
Kent
PG Music