The small horn icon for the notification area in the Win7 system is missing.

1. Find the small triangle icon on the taskbar in the lower right corner of the desktop (show hidden icons), click on it, then click "Custom", as shown in the following image:

2, in the notification area icon parameter setting, we find the small horn icon at the icon, and then change its behavior to "Display icon and notice", and then click "OK" button, as shown in the following figure:

3, under normal circumstances at this time can see the computer icon in the taskbar, if the settings are not shown after the completion, then we do the following operation, click on "Open or close the System icon", as shown in the following figure:

4, open the System icon to set the interface, we will change the volume of the System icon to "open", and finally click the "OK" button, as shown in the following image: