Why is my laptop randomly shutting itself off?

It sounds like your laptop is overheating. The first thing to test is making sure that your fan is working. If you don't hear it and can't feel any airflow from the exhaust vent, then either your fan or your laptop's fan controller (which is located on the motherboard) is broken. If your fan is working, then the thermal paste between the CPU and the heatsink likely isn't transferring heat properly. Fixing this will require disassembling your laptop and applying new thermal paste. I recommend Arctic Silver 5 or Noctua NT-H1 thermal paste.

Hi,

But what percentage should I set it to?

June 2017. Power settings now differ and I can't follow your steps as naming conventions seem to have changed a bit. I cannot keep the laptop on long enough to figure this out. It's not overheating. Although maybe it has some protection auto shutoff if fan is dead?

I have a lenovo flex 2

I am having this same issue with Lenovo yoga 300 , it does not even boot to Windows nor allow me to get to where to effect the changes you are talking about, in this case what should I do?

I am having the same issue with my Lenovo yoga 300, it does not even boot up to windows sometimes and the turn itself off. I can't even get to where to effect those changes and off it goes. What should I do here. Its really frustrating.

Another way that should work: right-click the mini power icon on one end of your taskbar. Select Power Options. This will open a window with power settings in Control Panel. Select a plan. (with the newest w10 there should just be one unless you have a custom because it is programmed to be adjustable (balanced)). Click change lan settings then click change advanced power settings. In the new power settings popup expand hard disk and then expand turn off hard disk after and click the down arrow until it says "Never" do this for both battery and when plugged in. this is the solution i found after reading the original answer to this issue.

I am having the same problem with my idea pad 320s which I bought end of Dec ‘17, so only 4 months ago. It’s not overheating because I don’t use it for very long or even every day. Sooo frustrating!!! I tried the power plan - with different percentage usage but had no joy.....do I call Curry’s or Lenovo support - no idea where receipt is!

I have the exact same problem with mine. Went to three repair shops and no one was capable to fix it, even changing the mainboard with a used one I got on eBay. Before and after the change, the behavior was exactly the same: a couple of hours of work and then shuts off as a TV set when unplugged the power, violently.

When I can enter to BIOS, it won't happen. It can last hours powered on only if I stay at BIOS. Totally useless of course but useful for diagnostic purposes.

I'm hardly considering forgetting Lenovo for my future laptops. One can't invest thousands for equipment that will last only three years, or less.

yes lenovo is the worst product it’s not worth , they design only for one year, it’s horrible service and horrible drives doesn’t work properly never buy lenovo brand

I have a lenovo x220 and had the same problem. Altough I checked the temp and it wasn’t excessive I have just changed the thermal paste and it has been working for 5 hours without shutting down. Before I couldn’t use it for 20 minutes and afterwards it kept shutting down all the time, even when idle even in the bios. I found a forum thread where this was the solution for many people with the same lenovo.

Techs will tell you to change the motherboard. But it seems that this worked out for many people with this problem.

Lenovo Ideapad 320 purchased December 2017. Worked for about a month then randomly shut off, sometimes after 10 minutes, sometimes 30 minutes. Put it in a closet and drag it out every once in awhile to update and just to see if it might work; same problem. Got only a month’s use out of this worthless piece of junk. Worst purchase ever.