Computer restarts and updates from energy saving mode

Hi,every time I have a windows update waiting and I put my PC into power saving mode Laptop, so every time I close the screen, it decides, on its own, to restart and install the update without asking me first.My problem is that this seriously jeopardises my work, as I may still have programs open at the time and by restarting windows, these programs are closed completely and data is lost if it is not saved properly beforehand. As I sometimes have to stop working unexpectedly and won't come back to the PC until i.e. the next day, this is a serious problem for me. It also means that, every tim