You can listen to music and watch movies on the computer. When listening to some audio on the computer, I often wear headphones in order not to disturb others. But sometimes there will still be external sound after plugging the computer into headphones. Here are the solutions.

Method one

1. Right-click the speaker icon in the taskbar and select the playback device.

2. Select the speaker icon.

3. The property button at the bottom of the window will change from gray to clickable.

4. Click to enter the speaker properties window.

5. Click the device usage below and select Use this device (Enable) on the right.

6. Finally, click OK.

Method 2

1. Press and hold the Win+R key on the keyboard to bring up the running window.

2. Enter msconfig in the open column and click OK.

3. Enter the system configuration window and click the Start tab.

4. Find the related items of the audio manager according to the startup items, and check Enable.

5. Finally, click OK.