Microphone does not work

check in windows sound settings to make sure that the microphone is turned up and not muted

You seem to have isolated the problem to the microphone. If the opening to the microphone is not blocked by dust or lint or some other substance then the microphone itself will need to be replaced. You might be able to verify the function of the microphone with an oscilloscope or volt meter, or simply replace it. Sorry there is not an easier solution.

it needs to be selected as the recording device instead of your inbuilt one but as you dont state important info i need to tell you how. I will leave it for you to figure out, as i see it if you cant be bothered, why should i?

Go into your device manager which is located in the control panel under system. Then go under audio devices or it might be labeled multimedia devices and find the microphone listed. Right click and press remove. Confirm removal and restart the computer. The microphone driver should now automatically reinstall.

ALSO, dont forget to check the volume settings of your microphone in the master volume settings. It is possible the microphone is just muted.

Resolving Microphone issues.
If microphone boost is selected, noise can interfere with recording. Follow the steps below to check for and disable the microphone boost setting.

Check Microphone settings

Follow the steps below to verify the microphone settings.

1. Right-click the Sound icon in the system taskbar, beside the clock. Select Recording Devices from the drop-down menu.
2. When the Sound window opens to the Recording tab, select Microphone . The Microphone entry should say that it is working, and there should be a meter beside the entry.
3. Tap the plastic above the display gently. The meter should respond to the sound stimulus by rising and falling.
4. If the microphone is not working, or if the meter is not present, or does not seem to respond to sound input, follow the steps below.
1. Click Properties and in the Microphone Properties window, make sure the device is enabled in the Device usage drop-down menu on the General tab.
2. Click the Levels tab and set the microphone volume to 100.
3. Click the Advanced tab and make sure all options are selected.
4. Click Apply and then OK . Close the windows.

Make sure the correct recording device is selected.

To access the sound properties, follow the steps below.
1. Click Start , enter sound in the search field, and then select Sound from the list. The Sound window opens.
2. On the Playback tab, select the SPDIF Interface, or audio device.
3. On the Recording tab, select the Audio device that is installed on the computer. It should be the same as the listing under Sound Playback.
4. Click OK , and then close the Sound window.

Also check the link below for resolving the microphone issues.

http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00833331&tmp_task=solveCategory&lc=en&dlc=en&cc=us&product=3224052&lang=en#N1457

first check if you have the right drivers on your computer for your audio, if you have audio like mine go to realtek audio manager it should be right beside the clock, then click on the top right corner it says device advanced settings it opens another box that gives you options for recording like tie up same type of input jacks, ie. line-in or microphone,as an input device. and it has another one separate all input jacks as independent input devices you could try one of those if you have realtek audio manager theres other options to that might help and if you dont have that go to recording devices and see if your mic is working properly and if its set to default device

• Check all connections for the "(type of microphone)" , make sure the microphone switch is set to the microphone button. • If you are running windows® 95 or later, check the microphone volume settings. 1. Go to the start button, All programs, Accessories, Entertainment(multimedia), then Volume control. 2. Make sure the microphone volume isn't set to mute.
3. go to options, then Properties..., select the button next to Recording
4. go to start button, All Programs, Accessories, Entertainment(multimedia), then click on Sound recorder to test your microphone.
Hope that helped! ~xiviogwiffi

check your cpu port for microphone to motherbord.
or may be microphone may be faulty.

If you are using skype, go to the upper left hand top and click on call. Then click on audio settings and make sure your microphone is listed as the mike to use in the window of the drop down menu. It should say logitech something in the window that says microphone.

in advanced settings there would be options for microphone boost and something else...disable both...i dont know the reason why this happens but mic doesnt work with those options enabled....