I don't think you're actually correct anymore. There's a huge push going on in enterprise right now to get everyone upgraded from WinXP to at least (and typica

I don't think you're actually correct anymore. There's a huge push going on in enterprise right now to get everyone upgraded from WinXP to at least (and typically) Win7, and many companies are including an upgrade to IE10 or IE11 in part of the desktop image. Generally speaking, unless there are specific reasons for requiring an older version of the browser, they're going with the newest available and allowing it to auto-update. You should feel good knowing that the predominant reason why this sea change has occurred is because of developers and the pace of the modern web: devs are refusing to target old versions of browsers, especially IE, anymore. In edge cases where a specific browser+version is required, that's pushed to the affected user(s) as a one-off. My team, anecdotally, don't even test against IE for internal-only apps anymore. We make sure things work with FF & Chrome current and current-1 and that's it. For external facing apps we cross-test against IE current and current-1, too, but that's the minority of our work.