How can I solve the problem of image thumbnails not displayed in the Windows Image preview window?

Q: Windows is installed on my computer.
2000. Recently, it was found that the image preview function of the folder is unavailable. That is to say, the image preview window cannot display the thumbnail, and only the file icon is displayed in this position. What is the cause? How can I restore the image preview function?

A: The reason why the image preview function is invalid is that you have installed the image View software or image processing software in the system. These software will change the association of image files, make these software a designated program for opening image files. However, when you delete these software, you do not use the special uninstallation program or the delete program function provided by the operating system. Instead, you forcibly Delete the software, because these programs are still associated with files in the system registry, the operating system neither can use the software that has been deleted to display images nor use the original picture preview function to display images. The solution is as follows:
1. Select Start> run with the mouse ".
2. In the pop-up window, in the "open" column, type regsvr32.
X: winnt/system/thumbvw. dll and click OK. In this command, X should be replaced by the actual Disk Partition Number installed in the operating system.
2000 if the disk is installed on drive C, replace it with drive C at drive X.
3. After the command is executed, the image preview function can be restored.
Start-> run:
Regsvr32 shimgvw. dll preview Image
Add users to regsvr32 mshtml. dll