usb mass.exe is part of a product called known as Alcor Card Reader Driver and the developer is Lenovo Group Limited .
If you think that this file contains a virus or another malware, please download a virus scanner.
If usb mass.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 Alcor Card Reader Driver from the list to remove the process usb mass.exe from your computer.
If you have any problems with usb mass.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 Lenovo Group Limited, the developer of usb mass.exe and ask for more information.