看看这个说明就可以了
In some places the UI design has gone “backwards” temporarily while we’re working on the final experiences. For example in this build we know that it’s harder to join a Wi-Fi network. We’ll make changes to fix that later.
Another example of some UI “roughness” is sometimes Internet Explorer glyphs look garbled and items on the Start menu might disappear. Not everyone will see this, it depends on your display driver. We have a fix for this one coming soon.
Some machines may wake up and not go back to sleep properly.
Microsoft Solitaire and Mahjong games are broken in some cases and won’t launch.
When using 2 external monitors over Display Link, you may get a blue screen when you undock. This does not appear to be an issue when using just 1 external monitor. A fix for this one is in the works too.