How to get OSD working on LENOVO X201 Laptop and others

This is the way you get OSD, or on screen display working on lenovo laptop. Mine is X201, but similar ones would work the same way.
download.lenovo.com/eol/index...
pcsupport.lenovo.com/kr/en/do...
1. Hotkey Features Integration 3.81
2. Intel HD Graphics (Integrated) Driver (Lenovo OEM) (For brightness OSD)
(*Not from Intel site, you need the leveno oem driver)
3. Lenovo Power Management Driver
4. Power Manager
* You might or might not have to enable "Human Interface Device Service" in services.msc to get the volume button working.
*Hotkey Features Integration must be 3.81. If you get the latest one, it won't work.
Other stuff, you can get the latest ones.
* I'm running WINDOWS 7.