Win8 lock screen wallpaper does not show up whether it is boot login or standby

A Win8 system used by a netizen has opened the lock screen interface and also customized the lock screen wallpaper. Previously, whether it was booting, or the standby system is locked, the lock screen wallpaper can be displayed normally. This time, only the symbols below are displayed, and the wallpaper is blank. What should I do?

Generally speaking, the lock screen interface function of the Win8 system is set, but the lock screen wallpaper is not displayed, which may be caused by the graphics card driver. If it is a dual graphics card user, go to the device manager to uninstall the core graphics card driver; the core graphics card user, go online to download the graphics card driver suitable for your own core graphics card, uninstall the graphics card driver, and then re-install to try it!

The main idea of ​​the problem is on the graphics card driver, in addition to the problem of setting the image file of the lock screen wallpaper. If the above method does not work, then try to use system repair to solve.