Win7 system taskbar display desktop icon is gone, how to do

Sometimes used, will suddenly find that the display desktop icon in the Win7 system taskbar is gone. In Win7 system, in general, we are accustomed to directly click the "Show desktop" button in the quick launch bar of the task bar to minimize all windows, especially when opening a lot of windows. The window is more annoying. However, this "display desktop" button is often disappeared, in addition to pressing the shortcut key Windows
+D key to minimize, how can I turn out the disappearing display desktop button?

Step 1: Use the Win7 shortcut “Win+R” to open the “Run” menu.

Step 2: In the Open & Runs dialog box, type: regsvr32 /n /i:u shell32.

Step 3: After entering the command, click the “OK” button to wait for a while and the “RegSvr32" dialog box will pop up.

Step 4: Check the quick launch area of ​​the taskbar, if there is no <;display desktop” button.

Some users think that the function of displaying the desktop is not very useful, but it is very convenient to display it in the Win7 quick launch bar, which also improves the user's operating experience