Forum Discussion
Windows 11 laptop won’t sleep, stays awake all night
I close the lid or put it to sleep but my Windows 11 laptop just stays on. The fan keeps running and battery drains. I’ve checked power settings but nothing fixes it.
Unlike the older S3 sleep state (which completely cuts power to most components), Modern Standby keeps your PC's network connection and some background processes active so it can wake up instantly, like a smartphone. In theory, this should still use very little battery. In practice, a buggy driver or an app can force the CPU to stay active, leading to the fan running and severe battery drain you're experiencing.