I tried downloading several times- but none worked. Ofcourse, before posting a new thread, I checked to see if I have enough space, good internet- turns out everything from my part is okay. I also ran lol as admin, re installed, and turned off all anti-virus; however it always says to check my harddrive. idk why.
The patches always get stuck on a single file: Cassiopeia death lunar. Before that happens, it goes from approx. wait time of 8:40 and then quickly zooms to only 40 seconds, and then it freezes and the error message pops up.
How can I fix this? I know I'm not the only one because my friend had the same problem.
Thanks!

Try deleting your game files.
Navigate to:
Harddrive/Program Files/League of Legends/RADS/projects/...
inside are 'lol_game_client' and 'lol_game_client_en_us.'
If you delete both, then re run the launcher, it should force you to update the older files first and prevent the freezing.

KK im having same issue, gonna try what morg said hopefully works

thanks so much