A Windows 11 laptop user reports that the battery is completely drained the next morning whenever they put the closed laptop in a backpack after work. The device is only six months old, and no hardware faults are indicated. Which Windows setting should you check FIRST to address this issue?
Replace the laptop's lithium-ion battery pack.
Disable the Bluetooth adapter while on battery power.
Update the discrete graphics driver to the latest version.
Set the "When I close the lid" action to Sleep or Hibernate in Power Options.
If the action for "When I close the lid" is set to "Do nothing," the laptop will stay awake after the lid is closed and continue to consume power. Verifying (and changing) this lid-close setting to Sleep or Hibernate should be the first step. Replacing the battery or disabling radios may help battery life in other situations, but they do not correct the immediate cause of the drain in this scenario.
Windows 11 lets you change this under Control Panel → Hardware and Sound → Power Options → "Choose what closing the lid does" (or Settings → System → Power & battery → Lid & power-button controls in version 24H2).
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