Win7 computer desktop icon can not be automatically refreshed how to solve?

Many times, we need to refresh the icon of the desktop to make the computer run more stable and smooth. Even if our ghost win7 is perfect, how gorgeous it is, but this is a necessary function of the system, but a few days ago I received a consultation from a netizen saying that my win7 computer could not automatically refresh the desktop icon. Only manually or by pressing F5, how can I solve this problem?
1. Actually, I encountered such a situation, mostly It is because the registry information of the computer has been modified. To solve it, it is not difficult. First, let's open the registry editor window of the computer, press win+r, then type regedit in the window and click back. The car is fine.

2. Next, we expand the window on the left turn HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControl, right-click on the Control folder, choose New slipped menu - items.

3. The new item named update, then click on the item, and right-click in the right window, select New again - entry, and the name updatemode.

4. Click updatemode folder, right click, the new scalable string value in the right window, the name and its data is modified DWORD, and then double-click it, numerical data = 0 i.e. can.