You need to clean up the mess you've caused by running wine as root first. You will need to change the ownership of you ~/.wine directory from root back to your user. Do not disregard the constant warings about running Wine as root. Looking up how to use chown will help or just nuke you .wine directory as root (will delete all your wine data). Once you have done this delete all the steam folders, and as your user install steam: msiexec /i SteamInstall.exe If your install fails partially again either your wine version is < 1.1.40 or you simply need to delete ClientRegistry.blob in the Steam folder in Program Files. You must clean up your mess RE running things as root, first!