3.6.1 won't install/win7 64 bit

I have been trying to install 3.6.1 for three days to my win7 64 bit laptop. I have tried downloading it directly through both Firefox and IE and saving it to a flash drive and loading it from that. Each time I get a ‘missing cabinet’ message and the install fails. Does anyone have a work-around for this?

Test integrity of file (CRC). If CRC fail, something is wrong with downloaded file. Try to download new 3.6.2 version.