Greetings, if we can I would double check you are meeting these requirements on your machine you are attempting to install Malwarebytes with to make sure you are running on the necessary components for installing the product.
Minimum Requirements Windows: https://support.malwarebytes.com/docs/DOC-3533
Minimum Requirements Mac: https://support.malwarebytes.com/docs/DOC-3546
If you are meeting all of these requirements then I would try to perform a clean install after using our support tool to clear off any Malwarebytes files on the machine. You can get our support cleanup tool here: https://support.malwarebytes.com/docs/DOC-2387
Then let's re-attempt an install afterwards.