Win7 system desktop icon has a blue question mark how to solve?

  

How does the Win7 system desktop icon have a blue question mark?

1. Open “Computer”, click “Organize>Select“Folder and Search Options";

2. In “Folder Options” ; View ” tabs in the "Advanced Settings" box click on “Show hidden files, folders and drives”, then <;Hide protected operating system files (recommended)” Remove, click Apply and OK;

3. Switch to the desktop, we can see a semi-transparent folder named “ldv;.svn”, we delete it, then restart the computer to solve .

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