A little info copied from another web page. I was unable to supply link as this site thinks it's spam.
PUP.Optional.MyWordTool.A is a specific detection used by Malwarebytes Anti-Malware to indicate and detect a Potentially Unwanted Program (PUP). A Potentially Unwanted Program is a program that contains adware, installs toolbars or has other unclear objectives. When Malwarebytes Anti-Malware detects PUP.Optional.MyWordTool.A you do not immediately have to worry, because it is not a virus or other malware. But only a unwanted program classified as PUP or adware because it has a bad reputation or behavior. And in most cases the program is installed whitout your knowledge, therefore detects Malwarebytes Anti-Malware this application as PUP.Optional.MyWordTool.A This items are not always checked by default for removing, but we strongly recommend to remove PUP.Optional.MyWordTool.A from your computer.