Windows doesn't shut down and Realtek audio manager doesn't start!

[siimmarten]

Before changing my motherboard with the processor everything was working fine till I was on a vacation for 4 days and when I came back I booted up my pc and I didn't hear through my headphones but instead I heard from my monitor (HDMI).Then I tried to restart my computer and the monitor went black but my fan leds and fans were all working and I waited more than 3 hours and still it was restarting.So I held the power button till it stopped and went off and started my computer again,logged in and still no audio from my headphones.
Old motherboard:https: //www.asrock.com/mb/Intel/H110M-DGS/index.asp (I3-7100).
New Motherboard:https: //www.msi.com/Motherboard/H310M-GAMING-PLUS.html (I5-8400).
I have installed all the drivers with this software: https://www.iobit.com/en/driver-booster.php
My device manager shows Nvidia Definition Audio under Sound,video and game controllers.
My computer audio is controlled by Realtek audio manager MSI
I can't restart or shut down my pc without holding the power button!
In the program sound under recording it shows no audio devices are installed and under playback I only have my monitor speakers.
Help me solve this problem please!

 

[siimmarten]

I somehow fixed the problem when I tried to add Realtek drive to Sound,video and game controllers my pc ran into a problem and IT magically restarted and I had audio!