I had posted my experience of adding JAVA, JMRI 14.4 and a PR3 to my wife's 64 bit HP machine just last night. Her HP had never seen JAVA, JMRI or the PR3. I removed the posts as I felt it would not help Chuck, but simply prove it all works.?
Steve's firmware update was the better recommendation.
My experience was NO TROUBLE AT ALL installing the JAVA.JMRI, PR3. But my PR3 was running the latest firmware as I have a habit of installing the latest available to my devices.
Early on Win10 64 bit had a driver to support serial (PR3) type devices,? but it was buried in the Win10 Install. Installing the driver was a workout. But Microsoft eventually updated WIN10 and it would handle it (PR3) in stride. So if your Win10 has never seen an update, yes you had issues and had to follow the DIgitrax instructions in detail.?
If your Win10 install is current and with all the fixes and updates, from Microsoft, applied, there should be no issue at all.?
My experience proved it to me.
I am awaiting a PR4 this week. I will report back my findings when I get my hands on it.
Marc