I recently had to reformat my entire drive and reinstall Windows 7. Something that bothers me is that when I was downloading the Intel Rapid Start driver (I have a Lenovo Ideapad Y480, and it comes standard with the Rapid Start) and tried to install it, the installer claimed that my system did not meet the requirements in order to install, when it was previously installed by the OEM.
My startup times have increased from 21 seconds to log-in screen to 50 seconds.
Lenovo Ideapad Y480
Intel Core i7-3610 Ivy Bridge (quad-core)
Nvidia Geforce 640M LE with 2gb VRAM
1TB hard drive, 32 GB SSD (OEM installed)