1.How to re-enable the disabled microphone in window 7

2.How to Disable the Microphone in Windows 7 by Nicholas Lee Fagan

3.How to Enable Microphone on Windows 7 (also windows vista

Today i will show you "how to re enable microphone windows 7 || Setting up a microphone in Windows 7"

As you have disabled the built-in Microphone, first lets try to set the Microphone as a Default Device and enable the same.
Perform the task mentioned below to set Microphone as default device and then enable it.
1. Go to Start and click on control Panel.
2. Click in Sound, then a new window will open up.
3. In the new windows click on the tab "Recording” and right click in the window and click on Show Disabled devices.
4. Now check if the microphone is listed there and highlight the microphone and click on "Set as Default" device.
5. Now right click on it and choose enable.
Doing this will enable the built-in Microphone.
Check if the issue persists now.

Refer this link for additional information:
Tips for fixing common sound problems
http://windows.microsoft.com/en-US/windows7/Tips-for-fixing-common-sound-problems
Regards,
#technalogystreet