Download Problems

Strife - Lothranis

Ok,so last night when I tried to open my PWI launcher, it loaded like normal, and then said "Files Corrupted, please re-install". Since then I have uninstalled and installed the game again 3 times, each time deleting it fully from my computer before tring again. It will load fine, will verify the files fine, but whenever its doing the final installation part, it will always stop around 30% and say "Unable to open compressed file". Like I said I've done it a number of times and have this same problem each time. Is anybody else having the same issue, and how can I fix it.