topic Re: arcmap 10.4 won't open ecw in State & Local Government Questions

arcmap 10.4 won't open ecw

ScottTaylor3 — Thu, 16 Feb 2017 00:18:44 GMT

My installation of Arc 10.4 has suddenly stopped opening ecw files. It did this after I simply closed the programs (ArcMAP and Arc Catalog) and later reopened them. We need to use ECWs so a fix would be hugely appreciated!

Re: arcmap 10.4 won't open ecw

DanPatterson_Retired — Thu, 16 Feb 2017 01:06:23 GMT

If that is all you did, I would contact tech support since ecw is a supported format. You might want to think back to see if anything was updated or installed in the intervening period

Re: arcmap 10.4 won't open ecw

ScottTaylor3 — Thu, 16 Feb 2017 03:46:07 GMT

Thanks, yes, it was very odd. I used the Windows cross icon (top right corner of window) to close them as I was in a hurry as opposed to the file...exit command, that was the only unusual part of the process. Nothing was installed in between to the best of my knowledge.

Re: arcmap 10.4 won't open ecw

ScottTaylor3 — Thu, 16 Feb 2017 04:08:39 GMT

Not sure if this is the full explanation: I installed the ECW for ArcGIS Desktop plug-in and ECW functionality has returned to ArcMAP and ArcCatalog. However, the plug-in was not previously installed so Arc10.4 must have native ECW support which has somehow become corrupted during my closing of the programs. Hope this helps someone else.

Re: arcmap 10.4 won't open ecw

JayantaPoddar — Thu, 16 Feb 2017 08:55:59 GMT

Try Resetting your ArcGIS application profile‌.

Also make following changes to registry

Press the Windows Key in conjuntion with the "R" key on your keyboard and type "regedit" - this will open the Windows registry editor.
Navigate to: HKEY_LOCAL_MACHINE > Software > ESRI and rename the "ESRI" folder to "ESRI_OLD".
Note that on a 64-bit machine, the location is HKEY_LOCAL_MACHINE> Software> Wow6432Node> ESRI
Navigate to: HKEY_CURRENT_USER > Software > ESRI and rename the "ESRI" folder to "ESRI_OLD".

*Note: The templates of ArcGIS Desktop (ArcMap/ArcCatalog/ArcScene) will be set to default.

Reboot machine and start ArcMap.

Re: arcmap 10.4 won't open ecw

ScottTaylor3 — Fri, 17 Feb 2017 00:18:32 GMT

Thanks for that. I tried renaming the "raster" registry key to "OldRaster" without success, as the functionality has returned with the installation of the ECW plug-in I'll hold off on the updating of the app. profile for now but very grateful for the suggestion.