Tom, Adrian has expressed the broader issue with using any unsupported web browser more specifically: security.
In the very near term there is probably near to zero risk in continuing to use IE10, but, as time goes by those risks keep increasing and never stop. When official support is ended for a product, be it web browser or other, it essentially becomes "frozen in time" at the support end date. No additional bug fixes or patches of any sort are available for that software. This means that whatever any hacker or hackers can determine is a viable way to exploit that software will remain a viable way to exploit it in perpetuity. When that particular piece of software is both a web browser, and closely integrated with the operating system as IE is, that means you're keeping an ideal target on your machine for those who want to exploit its weaknesses to exploit them. It is really never wise to continue using unsupported software that touches the web or your OS "directly" (and IE does this) in any way. I use some very ancient pieces of software that have no connectivity to the outside world, e.g. Microsoft Photo Editor (from XP), several electronic automotive reference "manuals," and a couple more. The reason I don't feel unsafe in using those is that they have no connectivity to cyberspace - they're self-contained. Brian
