Development takes always place on current machines, and current hardware+software moves on. It's a huge workload in software development to continue to support old hardware and OS and at the same time integrate the new stuff from new hardware and OS.
There is always a time window where existing hardware is new and not yet supported, then well supported, then not well supported any more, then obsolete. If you choose to stay with some hardware and OS, you need to stay with the software from that time that can deal with it best. However, there are no updates to that any more, so if it doesn't work for whatever reason, there is no software fix to expect any more, and people who did know how to configure that software lose their memory as well, since they usually move on to newer software.
And in the end you're on your own if you stay with obsolete computer hardware and software. This is what has happened for your setup. It's the way things work these days. If you now "update" to Windows 10, you're in the same situation as you are now again in just half a year. That's not a wise thing to do.
