internet explorer will not allow downloads. Gives error "cannot download....not able to open this internet site. The requested site is either unavailable or cannot be found"
Does this happen with all downloads or just one or two
sites?
If it is all sites check here,
internet options, security tab,click on the custom level
button and make sure that "enable downloads" is selected.
If it is only one site perhaps the link is bad.
Good luck