When I was trying to backup my remote PostgreSQL DB from a Windows 10 machine, I kept getting an error that gave me the exit code 1073741515. All of the “test” connections inside the software worked fine, but the application kept failing on backup. I finally went to the “pg_dump.exe” that was being used in the backup process and it exited with a code that actually provided information.
The issue is that you have not installed Microsoft Visual C++ Redistributable for Visual Studio 2017. Go to link below to install it. You will need to scroll down until you see a tab called “Other Tools and Frameworks”, then it is the 3rd option down.
Hope this helps!