WINCC no landing window

This is based on the WINCC PCS7 landing, the installation of the CEMAT version number is 7.1SP1, the selection of the 007 library. Before the project is a good, normal use. For some reason, today I will reinstall the computer system, in accordance with the step, CEMAT also re installed, but when the project is running WINCC, found that even the landing window are not, also below the toolbar also shows only a part, do not know what was the problem, reply.
Picture Description: 1, user management 2, PROJECT OS is also normal 3, landing interface

Best answer
Operating system service is not running, reinstall the system, do not ghost, complete installation