My Samsung notebook doesn't boot for long

Hello, I have a Samsung Note book laptop. I have started to have some problems with it. It would start to boot up like normal, and then after shutdown. The LED lights would turn on, I canhear the cd start up, the
 
This might be due to Power Management -> Wake Settings. Please check all device properties - >Power Management Settings in Device Manager and Power Options.
If there is any Active LAN Wake Up settings checked or something similar, it could wake the device even if you've shut down.
 
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