ok, here's the long explanation...qos= quality of service
It looks for sownloads that have a designtation as high priority...like a criticle update...if you are doing one of these downloads, qos will try to make sure it can finnish the download you asked for,,,that's it...it takes no bandwidth whatsoever in the very vast majority of use.
neverheless, I couldn't care less about these high prority downloads...if the download fails, I'll just do it again, so I turn the service off, for the soul purpous of speeding the boot
control panel>maintenance>administrative tools>services
they're are alots of services not everybody needs, you need to research, and experiment...for instance, if you don't share files, the best service to turn off is workstation...that'll save 20 to 30 seconds on boot...but if you do share files, you're stuck leaving this on.
go to
www.blkvipor.com
make sure you do a registry backup before you mess