You need to set the PGP home folder to a commonly-accessible folder. By default, it is created under the logged in user profile when the program is installed. The method to do so varies depending on OS. It can be found in the user guide.
Basically for Linux:
If you want the home directory changed on a permanent basis, you need to create the
$PGP_HOME_DIR environment variable and specify the path of the desired home
directory.
For Windows:
If you want the home directory changed on a permanent basis, you need to create the
PGP_HOME_DIR environment variable and specify the path of the desired home
directory.