Ok, here is a link to the HOSTS file. It needs to go in 'C:\WINDOWS\system32\drivers\etc'. This file is the one I downloaded here quite some time ago and I have added and removed a few things since (not many). It's a good start. Please make a backup of your original file first! Using this file can cause some strange results on some sites.
Download HOSTS file
This file does NOT have an extension. If you download it and it ends up with .TXT on the end, remove the .TXT.
If you have problems with the link, send me a PM.