The white desktop may be caused by using the same type of software as WPS before, but the registry is not clean after uninstalling. So to solve this problem, first we find the "control panel", and then we open it and find the "display" in the "control panel".

Then, open Display, check the display scale, select a display scale different from the current scale, and then log off the computer.

After the logout is completed, the problem can be solved by following the above steps, changing back to the original display scale and then logging off. After doing this, the following display is normal, and its desktop is not white.