Are you attempting to open the pgAdmin web console and it appears to be loading endlessly?

Are you seeing the following screen?

The problem is the registry association of .js files is broken.

Launch the registry editor Regedit and navigate to this key

Computer\HKEY_CLASSES_ROOT\.js

If the Content Type here is text/plaintext or anything else, double click and change it to text/javascript.

Then shut down the server and start it again.

The web console should now load correctly.

Happy hacking!