How to solve the problem that the computer becomes subtone after it is turned on

Turn it off and turn it on again.,If there's no suspicion that the sound module is burning.,My TV was like this a while ago.。

Can be fixed with 360 software, very quickly.

See if the audio cable is loose.

If it becomes mute, turn it off and turn it back on.

1. The last correct configuration: Before booting and booting the operating system, we keep pressing the F8 key, select "Last correct configuration" and then press Enter.

2. Safe mode: If the "last correct configuration" does not solve the problem, press F8 when you boot up, enter the safe mode, use software such as 360 to repair the system files, and check for viruses.

3. If it can't be repaired, we can enter the safe mode for system restoration.

4. None of the above methods work, and it is recommended to do the following:

Desktop host: 1) Power off, open the chassis, plug in and unplug the memory, wipe the gold finger part with an eraser, and plug it back in (don't reverse it).

2) Plug and unplug the graphics card, wipe the gold finger part with an eraser, and re-insert it tightly (the buckle should be buckled).

3) Unplug the power cord, cut off the button cell battery of the motherboard, wait for three minutes, and then reinstall the motherboard.

Laptop:

Unplug the power cord, remove the battery, open the back cover of the memory, plug in and unplug the memory, wipe the gold finger part with an eraser, and plug it back in (don't reverse it).

Unplug the power cord, remove the battery, and press and hold the power button for 30 seconds without letting go.

If the fault persists, the system can only be reinstalled.

In the start menu, enter control userpasswords2 and then remove the "To use the machine, the user must enter the account and password" checkmark and click Apply (note that the application is not OK), and then a window will appear that allows you to enter the account you want to log in automatically, and enter the account you want to log in automatically at boot on, and if you don't have a password, it will be empty.

When you enter the window screen when you boot up, press esc to cancel. This screen shows that there is an error in your hard disk, please run a disk scan or magnetic sheet after entering the system, otherwise the hard disk will be broken if it goes down often.

1. Repair the system: If you can't enter the system normally frequently, press F8 immediately after booting to see if you can enter the safe mode or configure the correct mode for the last time, if so, the system will automatically repair the registry after entering, and recall what operations were done when the first few abnormal phenomena occurred, and according to the suspicion that a certain application software (or driver) caused the problem, uninstall it, and then exit normally, and then restart it should be able to enter normal mode. If you have security software installed, you can use 360 Security Guard plus 360 Antivirus or Kingsoft Antivirus and other similar security software in safe mode to clean up your computer, optimize and accelerate (remove redundant boot auto-start programs, defragment hard disks, etc.) and check and kill Trojans and viruses.

2. Reinstall the system: If the above operations are invalid, you need to reinstall the system (Note: If the C drive has important data, it needs to be backed up in advance).

There are many ways to install the computer system, in addition to the time-consuming and troublesome complete installation method that is rarely applied now, the commonly used is clone installation, and the method is divided into: hard disk installation, U disk installation and optical disc installation, etc.

To reinstall the system using a disc, the procedure is as follows:

2) Set the CD to boot: press the DEL key (the notebook is generally F2 or the hotkey prompted at the bottom of the screen) to enter the CMOS after booting, and set the optical drive (CD-ROM or ***-ROM) as the first boot item in the Boot tab (or Startups) (the old motherboard needs to enter the Advanced BIOS Features tab, press Enter at "1st Boot Device", and then select CD ***-ROM), Press F10 again to save and exit the reboot. Some new motherboards support pressing F12 or F11 to enter the boot options menu after booting, and you can directly select the optical drive without entering the CMOS interface.

Insert the system disc into the optical drive in time when you restart the computer. After the system is reinstalled, pay attention to setting the hard disk as the first or second boot item.

3) Clone and install the system: After the disc is successfully started, the function menu will be displayed, at this time, select "Install the system to the first partition of the hard disk" in the menu, press enter to confirm and follow the prompts, or after entering the PE system, run the "one-click installation system" on the desktop, the computer will automatically run the GHOST software to automatically load the GHO file and clone and install it to the C area, the whole process basically does not require manual intervention, until the last entry into the system desktop.

Desktop blank right-click properties--- settings--- resolution settings: 1440*900, right color quality settings: up to 32 bits, OK.

Reboot to try it out.

Reboot does not work, reinstall the graphics card driver.

Oh, my God! No wonder you install so much software. Reboot and try.

Generally, this situation is due to a hardware problem, resulting in a stuck self-test process. Mainly keyboard, mouse, hard disk, optical drive these hardware will cause this situation. Since it is a notebook, if you are familiar with the notebook, you can disassemble it and check it.

If you are not familiar with it, you can only go to an after-sales or repair shop.

Yes, this is a driver conflict, you need to uninstall the updated driver first.

Not necessarily.

Judging by the **, it is not the Realtek driver that is missing the signature, but the AMD driver.

This situation may be due to the fact that the computer cannot detect a certain hardware during the self-test or is stuck in the detection of a certain hardware. 1. Keyboard and mouse, the boot self-test will detect the mouse and keyboard, if there is a problem, it will cause the card to the self-test interface, the solution is to unplug the keyboard and mouse, check whether it passes the self-test, if it passes the self-test, replace the mouse and keyboard. 2. Hard disk and optical drive, the most likely is the hard disk and optical drive, the desktop needs to open the chassis, unplug the power cord of the hard disk optical drive to see if it passes the self-test, if it passes, further rule out the problem of hard disk or data cable.

3. If none of the above is true, then the most likely thing is that there is a problem with the motherboard BIOS and needs to be returned to the factory for repair.