VisualStudio changes the project name

• 1. Right click on the project to rename
  

• 2. Project solution - right click - properties - change startup project

• 3 Change the name of the sln file and the path name in the sln file

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• 4. Change the folder with the same name in the sln directory

• 5. Step ①Right-click-Properties, change the default namespace (in addition, you can change the generated program name here)
  

• 6. In the assembly information, you can change the display name of the program (such as the display of the task manager), and some copyright information
  

• 7. Find a namespace at random, right click after selection - rename (or Ctrl+R+R), rename all namespaces
  

• 7. Recompile
  Reference: Change the project name in VS (take VS2017 as an example)