I have downloaded malwarebytes and is located on my desktop, I click on it and it opens up an install wizard i get through all the setting up questions and when I go to install it, I immediately get an error message Internal Error: Failed to expand shell folder constant "userappdata".. It says the install cannot be completed and closes, I have tried to uninstall it from my computer and it does not show up in my add/remove program list so I cant even uninstall it to try and redownload the program.. I would appreciate and help or suggestions that I can get since this is very frustrating and i have been trying to figure this out for a while now and cant get anywhere.