I have this laptop and was working fine but then one day it showed me message that my O/S went missing, anyhow i was worried and thought of a numereous facts in which the worst one was of my hard drive failure but after a lot os hustle i managed to reinstall windows after disableing the RAID devices. Anyhow I want to reset my RAID settings through BIOSin order to use RAID so please help.
Please HELP

Thank you