Windows 7: Error messages and warning sounds

I recently tried Tuneup Utilities software on Windows 7 Home Premium and after uninstallation and reboot I stopped getting warning sounds with the messages for something such as:

A filename cannot contain any of the following characters: \ / : * ? " < > |

if a file was named such as " x: 123 " you would get the message and the Windows Critical Stop.wav sound or if you opened Services.msc chose a service and a new box would open say dirmngr properties and if you tried to close the parent services window you would get the critical stop sound and a flashing window. Another example is with imgburn I have the success sounds turned of but if a burn or erase was finished you would get the asterisk sound. All of these have stopped but all the other sounds as IE sounds startup, shut down all work fine. I tried system restore to the earliest restore point and even to an earlier point with ERUNT to no avail. I had this happen once before on XP and the repair function didn't help.Does anyone know how to fix this with out a clean install?

Thanks in advance.

Stop using registry cleaners.

Repair Install

Go to sounds in Control Panel and see if a sound profile is enabled. If not, choose one and try it. It will show a list of sounds for each Windows action for which the profile has a sound for and you can play it.
Tuneup may have changed a few things, but should not be irreversible. In its System Control go through that to see if there is a sounds setting.

Use System Restore to go back before you did anything.

Don't "tune" Windows 7.

Thanks all, but it looks like this is a secondary problem related to the task scheduler and something with google updates that occured today. There is a missing event message and the snap-ins need reloading every time. Restores donot correct it or as I said earlier restoring the the reg hive with erunt did anything a repair is not possible with a slipped streamed disk:

* You can use a Windows 7 SP1 installation disc (ex: Technet (available), MSDN (available), or retail (when available)) to do a repair install with on a currently installed Windows 7 SP1.
* You cannot use a slipstream Windows 7 installation disc to do a repair install with on a currently installed Windows 7 SP1.
* You cannot use a slipstream Windows 7 installation disc to do a repair install with on a currently installed slipstream Windows 7 SP1.
* You can use a Windows 7 SP1 installation disc (ex: Technet (available), MSDN (available), or retail (when available)) to do a repair install with on a currently installed slipstream Windows 7 SP1.

All the sounds works except certain error or program "asterisk" alert sounds which I found annoying anyway. I just tried tuneup because it had because it can remove hotfix backups, I had just removed sp1 backup with ms disk utils. I'm going to try creating another profile and see if the missing sounds occur in the new profile. Ultimately I will do a clean install in a couple of weeks and this time I will image the partition.

Thanks again.