Your using MSI Afterburner right?
If so, go to settings; under the "General" tab, make sure that you have "Start with Windows" checked.
Click ok to close the window.
Look under the "Profile: 1 2 3 4 5 save" area at the bottom of the main window.
You'll see "Apply overclocking at system startup".
Click on that and a red light will light up to the far left.
The settings that are active at shutdown will now be active at your next boot up.
MSI Afterburner will start minimized in your Notifications section so don't worry when you don't see it up.
I hope this helps.