hi, use ArcHydro occasionally but I'm not too familiar with it. I had been using Arc Hydro 10.2 with ArcGIS 10.2 for a while and recently upgraded to ArcGIS 10.4. I then had an error in running one of the ArcHydro tools (Stream segmentation tool, error was "ArcMap has stopped working") and realized I probably needed to upgrade to ArcHydro 10.4 which might be the cause of the error.
So I uninstalled ArcHydro 10.2 and downloaded/installed ArcHydro 10.4. But the ArcHydro toolbar in ArcMap is still apparently using version 10.2. When I click "Help" in the toolbar, it shows the ArcHydro 10.2 documentation. I deleted temp files and rebooted my machine and it's still on ArcHydro 10.2. And I still have the stream segmentation error. Anyone know the issue here? Thanks!