There is no sound when you boot and log in, and there is no sound when the computer is turned on

1.All system sounds are there, and they are not lost.

2.I haven't used the optimizer, so there is no cause for the optimizer.

3.The key value in the registry has always been set to the on/off sound.

4.I tried to install an Apple sound solution, and the other sounds such as the sound of opening the menu were normal, except for the sound of turning on and off.

5.The sound drive is fine, watching movies and listening to songs is completely normal.

6.When the debugging system is loud, it makes a "drop" sound (that's the sound alarm).

In the above case:

When restarting the computer, press and hold F8 to select Enter Safe Mode].

5. Start the project with sreng-point point service point win32 service application: delete the following items:

win32 display driver / win32dds][stopped/auto start]

6. Start the project with sreng-point point Registry: Delete the startup of the following items:

c:\windows\temp\> n/a]

c:\windows\> n/a]

9. Use the Fair's forced deletion tool or PowerRMV, select Suppress file regeneration, and then delete the following files

c:\windows\

c:\windows\temp\

c:\windows\system32\

Fix file associations.

chm error. [" %1]

hlp error. [1]

If the above mentioned files have been processed, replay them to normal mode to see. (I hope the above method works).

Check to see if the volume is turned off or muted.

Driver, remove, reinstall.

En in the BIOS set him to default and that's OK.

You volume setting** turned off something, you go and see.

Is there a sound after entering the system? The boot sound can be changed in the control panel.

You say a short "beep" sound, it's the sound coming from the computer motherboard, not the speakers!

This module is called speaker, and no sound means that the speaker on your motherboard is not connected!! It must be that the person who installed the machine is lazy and trouble-free.

It may be that the driver of the sound card is corrupted, uninstall the sound card and reinstall the driver.

If there is a problem with the driver, uninstall the original one and restart it at the time of installation.

Suggestion: First, use the latest 360 stubborn Trojan horse to kill (the slightly older one is not necessarily useful, not only that it doesn't cost money, but it has been verified by me and netizens that it is more effective than many killing hoses, I am not trusting!) ）。

Second, the grid C disk, reinstall the system, now useless against many viruses.

Third, the whole grid is reloaded.

Fourth, lore, full D grid, reloaded.

The latter two methods have no data, and now the backup virus may follow, although it can be recovered with software, but some are still unrecoverable or corrupted.

If you want to keep the data and kill the virus, equip yourself for a late-night snack, sometimes it's a hard-fought war. You can try other antivirus software and methods. But my personal feeling about fighting viruses is that if a mainstream software can't kill it, the virus is more difficult to deal with, and it's not as simple and fast as my method, provided that you always back up your important data.

Add another stupid way to wait for the rabbit, you can wait a few days, 360 stubborn Trojan horses or other killing soft can be killed, because there will be feedback, but ordinary people can't wait, it must be the virus is killed immediately and then quickly).

If you don't have any important data or the data loss is not too large, I advise you to use my method. Maybe you don't think it's anything special after reading it, although the method is simple but effective. It's the experience of many times of all-night, heart-stopping battles with the virus.

I have to admit that for us ordinary people, the virus makers are much more sophisticated, and the fight against "them" should be left to professional people.

Don't be so scary.,1 The sound icon in the lower right corner is indicating that it is not poisoned.,It's the Buddha who has used the optimization master or something.,Restore it.。

2 The sound icon in the lower right corner is not there, it means that it is poisoned, kill the poison first, and then update or reinstall the sound card to drive Realtak

Take a look at the little speaker in your lower right corner, the output selection in the properties, change it, and try it. Good luck.

Try plugging in headphones to see if there is sound?