efm.exe is part of a product called known as RightFax® and the developer is Open Text Corporation .
If you think that this file contains a virus or another malware, please download a virus scanner.
If efm.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 RightFax® from the list to remove the process efm.exe from your computer.
If you have any problems with efm.exe, you may try using a registry cleaner or a speed-up software to check, analyze, and fix problems that are affecting the performance of your computer.
You may try contacting Open Text Corporation, the developer of efm.exe and ask for more information.