Instructions for Updating ArcGIS & Arc Hydro Groundwater

If you are about to update your ArcGIS and AHGW software you will want to first do the following in this order:

  1. Check that your AHGW maintenance license and drivers are current
  2. Uninstall AHGW
  3. Uninstall the old version of ArcGIS
  4. Install the new ArcGIS
  5. Download and install the newer version of AHGW compatible with the updated version of ArcGIS
  6. Contact if you have issues getting the newer AHGW version to run with your updated ArcGIS