reboot
verb [ I or T ]
uk/ˌriːˈbuːt/ us IT
if you reboot a computer, or if a computer reboots, you switch it off and then switch it on again a short time later, especially in order to get rid of a problem or after you have put new software onto the computer:
Once the patches have been installed, users are recommended to reboot their computer/PC.
All running programs are saved to disk and then restored when you reboot.