For anyone who has the same problem, I found a solution, maybe not the best, but it works. According to the following link:
https://stackoverflow.com/questions/29372831/java-packager-tool-custom-install-location
***ALLWAYS SAVE A COPY.****
It is necessary to edit the file "ant-javafx", located in "Java\jdk1.8.0_161\ lib" once we will navigate to "com \ oracle \ tools \ packager \ windows \ template.iss" ,
From here we have two options, edit:
DefaultDirName = APPLICATION_INSTALL_ROOT \ APPLICATION_NAME
To:
DefaultDirName = {sd} \ APPLICATION_NAME
this so that our application is installed in C:/ and have no problems with administrator permissions.
The next option is to change:
PrivilegesRequired = APPLICATION_INSTALL_PRIVILEGE
to:
PrivilegesRequired = lowest
but this option did not work for me.
In case you have problems when editing, we will move this file to the desktop so that you do not have problems when editing it, dragging it again when you finish.