Go to Control Panel -> System -> Hardware -> Devices Manager

Click with right button of Your mouse on each yellow sign and choose properties. Then go to bottom details and paste here device id. This way we will know what it is.

Below You’ve got example how to do it:

My sound does not work. All drivers are installed and the Device Manager reports it is working properly. Why isn’t it working?

Windows Server 2003 Enterprise edition has the sound drivers disabled by default. Windows Server 2003 Standard edition does not, thus you CAN hear sounds on a standard edition installation.

You can however, also enable sounds on Windows Server 2003 Enterprise edition. To do so follow the next steps:

1. Go to the Services applet in Administrative Tools (or click Start, then Run, and type “services.msc” (without quotes) and click OK).
2. Find the “Windows Audio” service, right-click and select Properties, select “Automatic” instead of “Disabled” in the startup type box.

1. Click Apply.
2. Click Start.
3. Click OK.

Alternatively, you can double-click the Sounds and Audio Devices applet in Control Panel, and select e Enable Windows Audio check-box.

Reboot in order for the sounds to begin working.

Sometimes, driver manufacturers do not provide an executable file (.EXE) to install their drivers. Instead, they provide an INF file in a zip or rar file.
The first thing you need to do is unzip this file , remember where it is .

An INF file is short for INFormation file. This is a document that Windows “reads” to know how to install a driver. Following are the instructions to install a driver via its INF file.

Note: The steps below assume that you have already downloaded the new driver recommended by DriverIDentifier and unzipped its contents. (This is important. If the file is not unzipped and it’s contents extracted, Windows will not be able to detect the INF file.)

1. From the Windows menu, click Start.
2. Click System, choose Hardware, and then click Device Manager.
3. Click the device whose driver you want to update.
4. Right-click the device and then click Update Driver. This will open the Hardware Update Wizard.
5. Click No, not this time and then click Next.
6. Click Install from a list or specific location (advanced) and then click Next.
7. Click Search for the best driver in these locations.
8. Click Include this location in the search.
9. Click Browse and go to your driver file location (inf file – the location that you unzip the driver download file)

Tip: If the wizard finds the INF file, the OK button should be clickable (not grayed out).

10. Click Next.
11. Finish the Hardware Update Wizard.
12. Reboot your computer.