I download it it says keep or discard I clicked keep and it said interrupted

What browser are you using?

Does the file start downloading until a certain point or does it give you the error message right after you click keep?

Try reseting your browser settings or

Try using a download manager like "Free Download Manager"
Here is a link - Free Download Manager | Download (http://www.freedownloadmanager.org/download.htm)

Hope this helps
Grant