I have a older Dell Vostro 2510 that I upgraded from a T7500 to a T9500 (Core 2 Duo 2.6GHZ), from 2GB DDR2 to 4GB, 128 GB SSD and Win 7 Pro. As far as I'm aware I updated all of the drivers, but after startup resource monitor shows that RAM and CPU are regularly at 50% or higher.
Worse yet...