In Esri learning module:
GIS for Humanitarian Mine Action: Using Vector Data in ArcMap
We are asked to save a bookmark: In the Save Bookmarks dialog box, if necessary, navigate to the folder on your hard drive.
I could not find the ArcGIS\Bin folder. Then I found it but it is in the Program files(x86)\Desktop 10.7\bin. When I try to save the folder there I received an error message saying I did not have permission to save in this location