ASF2 Force off

Question

BIOS shows ASF2 Force off - windows event logger states kernel power critical error. On studying powercfg /SLEEPSTUDY reports, it came to know Windows shutdown abrubptly everytime I wake up the laptop from sleep, while it is on battery. If it is on power, the power will never break. I am not sure if it is a hardware related porblem, as I didn't open it - although I did change some BIOS settings (which I cannot recall - but those weren't related to power). In BIOS sleep is not blocked, and I rechecked everything related to sleep and power and it is where it should be, or maybe I'm missing something. I have also installed keysight drivers of instrument control, after which I have observed this behavior, they are uninistalled now, but the problem persists. So, what steps should I follow to troubleshoot further.

If there's the problem with Windows I cannot clean install it; it will take too much time to setup the system again.

Fang9 · Accepted Answer

I ran the windows update, update drivers and BIOS, restore the system to the last availble point, and it worked. For me the problem was sudden restart when I open laptop lid and awake the laptop when it is on battery. These were some observations:

SUDDEN SHUTDOWN AFTER:

Awoken from sleep on battery
Awoken from sleep on AC but in intermediate sometime you have plugged your AC off

Sleep works fine, and it never shutdown (restarts) as I awoke it while the laptop is continuously on AC, and never on battery. when it was not on AC, or AC was broken in between its sleep period:

the BIOS showed ASF2 Force Off
event viewer (41) reported kernel power critical
powercfg reported critical shutdown

WHAT I DID

I ran diagnostic tests (F12), and hardware was OK - also if someone is facing the same issue

sfc /scannow
creating new user profile
testing in safe mode
testing sleep without login
testing in a new windows OS in some other partition (this will let you know if it is a hardware issue)

Also see the BIOS options in Dell - although it is not necessary in this case but block sleep option should not be disabled

vishvajitd · Answer

If you are experiencing the ASF2 Force off error and kernel power critical errors when waking your laptop from sleep mode on battery power, there are a few troubleshooting steps you can try:

Update drivers: Ensure that all of your device drivers are up to date, including the BIOS, chipset, and power management drivers. Check the manufacturer's website for the latest drivers, and install them as needed.
Check power settings: Double-check your power settings to ensure that your laptop is set to enter sleep mode properly when on battery power. You may also want to adjust your power settings to see if this resolves the issue.
Run hardware diagnostics: Use the built-in hardware diagnostics tools on your laptop to check for any hardware issues. These tools can help identify any issues with the memory, hard drive, or other components.
Check for software conflicts: If you recently installed new software or drivers, try uninstalling them to see if this resolves the issue. You may also want to check for any conflicts between different software programs.
Check event viewer logs: Check the event viewer logs for any additional information about the kernel power critical errors. This may help identify the root cause of the problem.

Latitude

ASF2 Force off

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