Won't even let me begin installation

i just download the 'Full Setup (All Platforms) (6 MB)' and when i tried to install it,

a error message pops-up saying
"the installer you are trying to use is corrupted or incomplete. This could be the result of a damaged disk,a failed download or a virus

You may want to contact the author of this installer to obtain a new copy.

It may be possible to skip this check using the /NCRC command line switch (NOT RECOMMENDED)"

can someone please help me :!: :?: :!:

thanks, i am jst downloading that, file in that link, thanks for taking the time to reply to me,