Yes, Sony and Dell are especially notorious for shoveling garbage onto their laptops. The worst is the pseudo OS X-style dock they all put in there in a failed attempt to make it feel like a Mac. Terrible.

Lenovo isn't too bad. I recently bought a Lenovo laptop for running Windows7 and the only thing I recall having to disable at startup was a boot optimizer (which helpfully had a 'Dont run again' button on it)