Drag and Drop + overlap + dotted box (to solve the problem of copying mobile text), drag and drop the dotted line

Drag and Drop + overlap + dotted box (to solve the problem of copying mobile text), drag and drop the dotted line

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Why is dragging a window just a dotted box moving with the cursor?
Right-click desktop ---- properties ---- find the "effect" item under the "appearance" tab, and select "show effect content when dragging, then you can "OK" all the way.

A dotted box is displayed when Windows are dragged in win7.
Right-click the computer, properties, Performance Tools, visual adjustments, and display content when moving the window!