Well since i published Turkish version first, here english tutorial for deployment to windows.
1 -Build your application at release mode on QT Creator as usual and move your output folder.
2- Run this app:
3- At console, move to release folder with cd command example: cd C:Usersceyhun.alyesilExportEdek
4- You can delete other files than your exe file(not other source files), i tested it with standard widget project so didnt need anything else.
5- Run this command windeployqt.exe . (there is a space and dot)