Can't Restore Original Startup Sound For Windows 7

Hey guys, I'm having a bit of a problem restoring the original startup sound for my laptop that's running "Windows 7 Home Premium SP1 x64". I originally changed the startup sound using a program called "Winaero Tweaker" and now want to restore Windows's original startup sound, but I can't seem to. Every time I try to restore it and restart my computer for the changes to take effect, the startup sound doesn't revert back to the original Windows sound. I also tried using a program called "Startup Sound Changer" and changing the sound to something else and then restoring it that way, but it still restored the sound I used before, not the original Windows startup sound. I'm stuck... what else could I do to fix this? Any replies would be helpful. Thanks! :)

I use Startup Sound Changer, too. But whenever I do the "sfc /scannow" routine, the original startup sound is put back in place.

OvenMaster said:

I use Startup Sound Changer, too. But whenever I do the "sfc /scannow" routine, the original startup sound is put back in place.

How do I go about performing the "sfc/ scannow" routine?

EDIT: Never mind, I looked it up myself, and it did restore the
original startup sound. Thanks for your help, OvenMaster. :)