W10 - cannot install latest version of Flash (232) on IE

I raise this as a general security issue.  Adobe Flash version ...232 has come out and I have updated Chrome, Firefox and Opera.  But Internet Explorer will not accept the update and I get the message that W10 has Flash built in and is running the latest version.  The version it is running is...209, not...232 (I checked).  I have tried running the W10 Check for Updates, but that insists that the latest version of Flash is installed (and did before I updated Flash in Firefox, Chrome and Opera). Any ideas?

I'm not using Edge.