i tried that dude but it still says cannot install akamai...
do you have a 2end firewall on your pc or your AV have a firewall ... see if there is any option to notify you when it try to lock a process
idk anything alse wich could help you ... or try and run the installer in OS XP mode and see if it get install
try also an alternative downloader
idk what alse to say...sorry
i hope you get fix it