There are several reasons for problems playing sound on a PC. Let's look at the main ones. The very first level that should be checked is BIOS. If sound cardbased on the popular Realtek ac97 codec and built into the motherboard, you should check whether it is enabled. The BIOS section where to look for sound card settings is called like Internal Perpherial. After enabling this function, you will need to download the system and install drivers either from the installation disk of the motherboard, or downloaded in advance from the official website of the manufacturer of the motherboard, but the latest version usually lies on the official website of AC97. If after all these manipulations the sound did not work, then perhaps a hardware conflict arose in the system. Find out if there are devices in the system that can "sit" on the same address spaces and interrupts. Although for modern Windows systems this is a rare case. Most likely, the codec chip is simply damaged.Then the solution is to installexternal sound card in the PCI slot. Pre-malfunctioning must be disabled, again, through the BIOS.
There is another level of problems associated with incorrect operation of the operating system. One possible reason is that the audio service is not running. Go to the "Control Panel", the "Administration" icon. Select "Services." If the Windows Audio service does not work, try to start it. If everything worked out, then congratulations. You can enjoy your favorite tunes. You have overcome the problem "the audio service is not running." But it happens that the computer gives errors. They can be very diverse. There are two universal ways to address them. Let us tell you a secret - no matter what mistake. The solution will be effective even if the audio service is not running in the relatively new version of Windows. Windows 7 is no exception. The first method is designed for users who are not "accustomed" to anything,except for the graphical interface. Just go to the "Standard" menu and select "System Restore". Then select "Restore to an earlier state of the system." A calendar is displayed, the dates of the month when the system restore point was made are bold. Now you just need to remember the date when everything was still in order. We choose, wait a few minutes and you're done. But another scenario is possible. You are logged in.wait a few minutes and you're done. But another scenario is possible. You are logged in.wait a few minutes and you're done. But another scenario is possible. You are logged in.System Restore, but there are simply no recovery points. This may be due to the fact that someone turned off the system recovery service and then turned it on.
Then the task of restoring sound is a little more complicated. You will need to arm yourself with the Windows distribution and boot the recovery console ( , R ). SYSTEM C:\WINDOWS\SYSTEM32\CONFIG C:\ C:\WINDOWS\SYSTEM32\CONFIG\SYSTEM C:\, SYSTEM , . , , . , , , System Volume Information C. Wndows . copy C:\WINDOWS\REPAIR\SYSTEM C:\WINDOWS\SYSTEM32\CONFIG\ , SYSTEM . . , " " , .
, Windows . ( > > cmd) sfc /scannow. . , , . , -, - 90%. "" , Realtek HD , , , . , It loads before the Windows service and “thinks” that Windows Audio is not starting.