What should I do if the icon file in the win7 computer does not display the preview?

In fact, many times, when we find the images we need in a lot of image files, we will not look for them directly according to the command, or when we import the images, there is actually no naming step, then the most What is the intuitive search method? In fact, it is a preview of the image file. All the image files in the ghost win7 computer actually have a preview image. We can quickly find the image we need through the preview image, but some netizens have recently proposed I don't know why, the image files in my computer only have icons, and the preview image is not displayed. In fact, we can make the preview reappear by setting. The operation method is as follows:
1. First, let's go back to the desktop location of the computer, then find the computer icon on the desktop and right click, select the last attribute option.
2. In the Open Computer Properties window, click on Advanced System Settings in the left menu, then in the Open System Properties window, switch the interface to the Advanced tab and click the Settings button under Performance.
3. After that, the interface shown in the following figure will appear. Let's select the custom in the visual effect column, then find the thumbnail in the list, instead of displaying the icon & rdquo; and check On, finally click OK to save the settings.