Yes it would stop lots of unneeded programs/services from starting up with Windows and leeching CPU cycles, RAM, Startup Time, in addition to often spying on you to collect consumer data.
At most if you have factory preinstalled Windows you might have to turn off the wireless crapware they add to replace Windows 7's superior version. That's right, in addition to ganging up all of these unneeded utilties on top of Windows 7, they also replace Windows 7's own native versions with bloated crapware. This is why at the minimum on a factory preinstall one should Clean up factory bloatware
if not Reinstall Windows 7
so it is unleashed in it's native feather-light, instantaneous state.
It's your property to do what you want with.