Laptop turning off at random, but not overheated?
So this has only happened twice so far. The first time was a couple days ago. I thought it was overheated, even though it was just idling while I was doing other things. I bought a new cooling tray, but it happened again this morning, and it was definitely not overheated.
The power button wasn't lit, so I looked up a troubleshooting guide and did the unplug and hold the power button technique. It still took a minute or two to actually turn back on, though.
I have no idea how to look up anything that might tell me why it actually turned off. I'm hoping someone can help me with that.
My other thought is maybe the power cord came loose long enough for it to go to sleep. Regardless of whether or not the power cord was actually the problem, another thing I would like help with is figuring out whether or not I can set a separate brightness level for when it's plugged in vs when it's on battery. That's a setting I used on all my old laptops to be a quick indicator of whether the cord had come loose, but I can't find a way to set that on this one.
Here are my computer specs.
Device name MSI
Processor Intel(R) Core(TM) Ultra 9 275HX (2.70 GHz)
Installed RAM 64.0 GB (63.4 GB usable)
Device ID 426374CE-B089-40D3-823B-4DCB9C1A54CA
Product ID 00355-62554-51985-AAOEM
System type 64-bit operating system, x64-based processor
Pen and touch No pen or touch input is available for this display
Edition Windows 11 Pro
Version 25H2
Installed on 11/25/2025
OS build 26200.7623
Experience Windows Feature Experience Pack 1000.26100.275.0