Windows7 64-bit Ultimate Edition system on the desktop all disappeared, only the text left how to do

Fault Diagram:

Method 1,

1. First, right click on the blank of the win7 system desktop and select “Personalization” option;

2 Then go to the "Show Properties" setting, select "16 colors" in the "Color Quality", then click Apply, then change to "32" & then click OK.

Method 2,

1. First click on the Start menu in the win7 system, then click Run. In the Run dialog box, enter the following command:

cmd /c del " ;%userprofile%Local SettingsApplicationDataIconCache.db" /ah /f

2, then right click on the blank space on the desktop, select "Personalization" in the shortcut menu, and then select the window color;

3, in the open window color interface, then change the size of the icon to 33, click [OK], then go back and operate again, change the icon size to 32, click OK, and the change is completed.