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It’s simple,
Open the project normally on Visual Studio, search in the solution manager a button with the name "Solutions and Folders", is next to a little house called "beginning", click, it will display the project folders, just click on the right click and then rename. After that, you’ll be renamed.
Already tried renaming by explorer?
– Jéf Bueno
Yes, when I open the solution the projects do not carry.
– Jhonatas Silva