(Troubleshooting: The computer cannot search for the wireless network, and it always prompts that the wireless network is closed. What should I do? At the beginning, the power options could not be changed, the screen would be black after a while, and the QQ connection would be dropped, and the deletion of the power options could not be changed. Delete energymanagement can not connect wireless how is it! After downloading an Energymanagement installation from the Internet, it prompts "The program input point PowerReadDCValueIndex cannot be located in the dynamic link library POWRPROF.dll.")