If there's no "Remote Administrator" entry in software list, it means that RAdmin was installed manually.
First of all, you must locate "r_server.exe" file on your computer.
Usually it's located in C:\Program Files\Radmin. If not, go into Start->Search->"For Files of Folders...", type "r_server.exe", ensure that "Look in" setting is set to "Local harddrives" and press Enter.
Run r_server.exe with "/stop" command-line switch. Then you must run it with "/uninstall" command-line switch to prevent it from starting automatically. After that you can delete this file.
To run a program with command-line switch, you must select "Run" command from Start menu, then type r_server.exe with full path encapsulated in quotas, than space and then required command-line key (for example, "C:\Program Files\Radmin\r_server.exe" /uninstall).
Next go into Start->Search->"For Files of Folders..." again, type "admdll.dll", ensure that "Look in" setting is set to "Local harddrives" and press Enter. Delete found admdll.dll files.
Now Radmin Server should be uninstalled from your computer.
Famatech Technical Support