Windows 10 should work with EVERYTHING that worked with Internet Explorer before the upgrade because (INCLUDING FormSimplicity for you fellow #realtors), according to Microsoft, it has the same version of Internet Explorer as in Windows 8. If you look at your taskbar, the e that looks like Internet Explorer takes you to Edge, Microsoft's new browser. However, have no fear, I am here and so is the old Internet Explorer, but hidden a bit. Go to your Windows menu and you will see Internet Explorer there as an e with a yellow slash across it. That's the same Internet Explorer (so they say) as in Windows 8.1 so it should work with everything IE worked with before. Some support sites, like realtors Form Simplicity, say they don't work with Windows 10, but I got to Form Simplicity just fine this way. I have not upgraded yet myself, so please tell me whether you like it or hate it. Thanks.