Service Host Delivery Optimization. As this is a system process you can't end it normally without shutting down your system! That's not an option, so we have detailed some easy but working fixes to easily solve the problem.
From this link I gather that you can disable it by turning off the setting of 'Updates from more than one place'. The best one I would say is O&O Shut Up. I tried to force stop the process, but it starts again when I restart the PC.
Service Host Delivery Optimization using all of my Internet bandwidth.
I am unable to use my internet for browsing.
Delivery Optimization — a feature you may have never heard of — is the answer. Now I can't disable it at all. I tried to force stop the process, but it starts again when I restart the PC.