Hello, My Windows 11 system reboots suddenly in sleep mode (standby mode) without waiting for applications to finish.
How I reproduce the problem: 1) I leave some applications opened (e.g. Chrome browser with tabs opened) and close the laptop screen; 2) the laptop goes into sleep mode; 3) after a few hours I open the laptop screen and it wakes up immediately, but asks me to log in as my user; 4) after authorization, I don't see any previously opened applications, and after another browser launch, I see its offer "Restore suddenly closed tabs?" 5) I open Event Viewer, look for the nearest errors and found an event with the text "The previous system shutdown at was unexpected."
What else I noticed: 1) This is independent of connected power supply or battery operated - I've observed this problem in both, but more often when plugged in. 2) It doesn't happen every time, about 80% of 100% of the time being in sleep mode. Usually after being in sleep for a long time (an hour or longer).
What I've tried so far: 1) I thought the problem was "hybrid sleep mode" and tried to disable it in power settings, but I couldn't find the corresponding item there. 2) I tried updating the battery driver "Microsoft ACPI-Compliant..." - I uninstalled it via device manager and rebooted the system. The system installed the exact same driver and the "hybrid sleep mode" setting did not appear. 3) I unchecked "Turn on fast startup (recommended)" in the Power settings and rebooted the system. The problem is still reproduced.