If you think that this file contains a virus or another malware, please download a virus scanner.
If Ghost64.exe is using too much CPU or too much memory in your system, it is possible that your file has been infected with a virus. Installing an antivirus is recommended.
Not all processes can be uninstalled without the help of a 3rd party tool, especially malware. To see if it can be uninstalled, first go to Start > Control Panel > Add/Remove programs and select Symantec Ghost from the list to remove the process Ghost64.exe from your computer.
You may try contacting Symantec Corporation, the developer of Ghost64.exe and ask for more information.