What should I do if the computer icon on the left side of the folder is not found?

In general, the navigation pane on the left side of Windows 7 Explorer has the following contents by default: Favorites, Library, Computer, Network. A netizen reflected that when I reinstalled the system, I accidentally deleted the three sub-items under the navigation pane's favorites, which made it impossible to save the file to the desktop or upload the file from the desktop. Let's help him solve it.
What should I do if the computer icon on the left side of the folder is not found?

1. Open my computer, click on the organization to select the layout, and then click on the navigation pane to see if it can be done.
What should I do if the computer icon on the left side of the folder is not found?

2. In the blank area of ​​the navigation pane, right-click the mouse to clear the check box for displaying all files and expanding to the current folder. Then the navigation pane will restore the settings in the default state.
What should I do if the computer icon on the left side of the folder is not found?

3. Try creating another account again.
What should I do if the computer icon on the left side of the folder is not found?

4. Use the system repair CD or the installation CD to repair the computer. U disk is also OK. Finally, if you don't bother, reinstall the system.
What should I do if the computer icon on the left side of the folder is not found?