sounds when computer is shutting down

[kenitay]

  For some reason when my computer shuts down it makes a weird sound like a donk! sound.  Like it is trying to shut down a program running or something.  This dosn't really affect the computer as far as I can tell, but it really bugs me.  I've tried all kinds of differnt stuff to try and fix the problem.  Also   there is a shell hidden window popup every once in a while when i shut down. If you know nething about this could ou plz help me.

[patio]

Control Panel / Sounds and Multimedia...check what sound is there for Windows shutdown.
This can be changed or set to none...

[lil_falco]

What patio said,

Also maybe on older computer go to setup when its booting by pressing f4 or delete or whatever it is... Should have options in there.