Can't open Adobe Bridge 2017

A problem with Adobe Bridge.  Used via Creative Cloud on Windows 10.  Photoshop seems to be working fine.  I got lots of help from an Adobe expert and finally fixed the problem - Bridge (2017) refusing to open - by reinstalling Bridge (2015).  I'll be perfectly happy to continue like this, but I pressed update, expecting it to update Bridge 2015 but it reinstalled B2017 instead.  I can't now find a way of installing Bridge (2015).  Is this possible please?