Error 1335 with Windows 8

I am trying to install version 3.6, and get Error 1335, saying that the cabinet file is corrupt. I have tried downloading from another mirror, but that version was even more corrupt and can not even start installing. How do I install this program?

Already discussed. See While downloading I have received an Error 1335 code - " is corrupt. Must I abort the download or can I click on ignore?