Computer infinitely shutting down?


Apr 12, 2012
My internet disconnects then my network and sharing center freezes so when i click the internet icon on my taskbar (i've tried unplugging my usb modem) So the only thing i can do to reconnect to the internet is restart my computer but when i do that it just says "Shutting Down" seemingly infinitely i left it for 45 minutes and it didn't turn off so i am forced to turn it off improperly (by holding down the off button) this has happened about 15 times in the last 3 times and it's getting really annoying and i really don't like turning my computer off improperly, so anyone know how to fix this?