thebigjosh5; Do you have a restore point before this issue?
You can try a few things as suggested already, then go into your bios and disable any wake on lan 'features'. Go into your device manager and poke around all devices look for 'Power management' tabs and try disabling allow to wake checks.
The same reboot on shutdown frustration used to frustrate me but I chalked it up to a possible not exatly 7 compatable motherboard even though I have the correct chipset drivers
for 7. And the issue is what realy brought me to this forum.
Anyhow If all else fails you can use the solution I settled on found here; http://www.sevenforums.com/crashes-d...-shutdown.html
But I would urge you to persue the cause as long as you have the time and the troubleshooting does not cause frustration to the point of no gain.*
*(this includes excessive alcohol abuse, pulling your hair out, loss of sleep, flatulence, etc.)