If for some reason, you're one of those rare cases where that doesn't work & you need the hosts patch the reason is probably simply that your hosts file is hidden..
In windows explorer you need to go to tools > folder options & set it to show all files.. been a long time since I poked round on ME, & I'd correct it using a DOS prompt & the attrib command, but I'd rather not be EXPLANING that method lol
HOSTS is there though, it simply doesn't show, pasting the new file in would almost certainly get the job done after a message "Do you wish to replace the hidden/system/ (possibly read only)...." file, but as good practice you should be renaming it to preserve as a backup in case things go wrong, to say hosts.old