How to disable lid open power on?

Disabling the automatic power-on feature that triggers whenever you open your laptop lid depends heavily on your specific computer manufacturer and operating system. On Apple MacBook laptops equipped with Apple Silicon, you can disable automatic lid-opening startup by opening the Terminal application, entering the command "sudo nvram AutoBoot=%00," and pressing Enter. On Windows laptops like Dell, HP, or Lenovo, restart your computer, tap the designated key (such as F2 or F12) to enter the BIOS or UEFI setup utility, locate the Power Management menu, and disable the setting labeled "Auto On," "Power On Lid Open," or "Lid Switch Startup."

Modern laptops—particularly recent MacBook and Dell Windows models—are often engineered by default to power on automatically the instant you lift open the display lid or connect a power adapter. If you are using a Mac with Apple Silicon or recent Intel chips, you can disable this behavior by opening the Terminal application and executing the command sudo nvram AutoBoot=%00, entering your administrator password when prompted. For Windows laptops, this feature is typically managed within the system's BIOS/UEFI firmware settings rather than standard OS controls. To access your BIOS, restart your computer and repeatedly press the designated setup key (such as F2 or Delete) during the initial boot logo screen, then navigate to the Power Management menu to locate and turn off options like "Wake on Lid Open" or "Auto Power On." You can verify success by shutting down the laptop completely, closing the lid, and opening it again without the machine powering on automatically.