Win10 theme background turns black solution

The Win10 system comes with a lot of themes, which can be updated frequently on the desktop to make the desktop look good. Some users have found that the theme on the Win10 system desktop suddenly turns black. Isn't this a big landscape? How to solve it?

I originally thought it was caused by a system update, but after several updates, the problem remains. The search on the Internet also did not find a solution. Today, when I accidentally changed the theme, the background color was no longer black. After several tests, I finally found the problem.

There are three Win10 default themes, which are "Windows", "Lines and Colors", "Flowers". If you switch to the "Lines and Colors" or "Flowers" theme, the background color is definitely not black. If you switch to the "Windows" theme or the downloaded theme, sometimes the background color is black.

To solve this problem, first switch to the "Lines and Colors" or "Flowers" theme, then switch to the theme you like automatically, so that the background color will not appear. Black phenomenon. Once it appears again, you can repeat it.

What is the reason for the black background of the Win10 theme? Nothing is, this is a bug. I believe that Microsoft will handle this vulnerability in the test phase of Win10 and give a solution.