This is the first time this has happened to me since I started using steam 2 years ago, does anyone know how to fix this? I tried to reinstall steam, it crashes my computer trying to create a start menu shortcut. It comes up with an unknown error when I try to, the link to the steam support site tells me to verify the files, which I already tried beforehand and I wouldn't even be able to do it any when the game isn't installed. I tried uninstalling and then reinstalling SpeedRunners, Steam wont allow me to reinstall it, and now I can't play it at all. I tried verifying the files but it doesn't do anything, it stays at 0%.
It tells me 'Update Required' in the library despite me always keeping auto update on, if I go to the download manager and add them to the queue they attempt to start the download which then appears as 0 bytes/0 bytes downloaded, it then stops a few seconds later without doing anything. I recently started having with a few of my games (Left 4 Dead 2, SpeedRunners), where they need to be updated but it wont allow me to.