This is the 4729th most frequent Russian word.
завершено
"Completed" or "finished."
In this sentence, 'завершено' is used to show that the task of project completion is done in a satisfactory manner.
Проект завершено успешно.
The project has been successfully completed.
Here, 'завершено' indicates the finality and completion of the action of installing.
Завершено процесс установки программы.
The installation process of the program is completed.
This use of 'завершено' highlights the completion of the activity related to the painting task.