My emachine d725 makes annoying beep when charger is being plug.

You must have a CPU (Central Processing Unit) with a 64Bit validation and generally a dual or quad-core system. Older systems cannot manage the requirements of Win 7/8 and thus, may be limited to XP.

Only of the CPU is a 64Bit CPU

it does not have a built in microphone, you ahve to install external one :)

have you rebooted since installation?

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This maybe a driver problem. You should try searching for new drivers on the internet. Try DriversHQ.com
Hope this helps

Install the correct webcam drivers version for your laptop OS.

Acer emachines D725 Drivers download @ http://support.gateway.com/us/en/emac/product/default.aspx?tab=2&modelId=1323

Hope it helps.

You can get all of the drivers from here:

http://www.emachines.com/support/drivers.html

choose:

Notebook
D-Series
D725

http://support.emachines.com/em/driver/nb/d725.html

Ye s the past eleven years they all do have a mic installed. Look for a very small hole surrounding the keyboard for it will be inside there

make sure your plug in is all the way inserted into your phone. If it is not completely in your plug-in, then it will make a beeping noise as it connects and disconnects from your phone. ALSO just common sense here, make sure its not just messages coming through.