I’m having the same issue. What I have found so far is the battery charges (new battery). When I have the pc plugged in does the same shutdown. When I run it only on the battery everything is normal again. tried my other HP power supply and same issue. When I boot into the BIOS and run the diagnostics on the laptop all is good and wont shutdown at all while plugged in. SO… I conclude it’s a windows feature. not sure what it is yet.
"Try replacing the power adapter, and hope for the best - the HP “smart” 65W adapter these 15-X machines come with is so light I have a feeling they are cheaply built internally. Try and get an OEM 90W, or a 65W - I personally use the travel 65W on my HP laptop (840 G3) and I’m happy with it. The ab laptops can run on a 65W no issue due to the low specs if you want to save a few bucks. DO NOT buy another one of the original 65W “smart” adapters, even from the HP store (Spare# 714657-001). They are hot garbage!
This is the one I use (paid $41):
HP Travel Power Adapter (65W). Alternatively, look into the 90W version. I do not like the “smart” adapters due to how light they are, and their tendency to prefer power savings>power means they age badly and fail in weird ways. Unless the 65W is on sale at a very healthy price cut I do not recommend it as it is usually only $10-15 cheaper in most cases. It was ~$41 for the 65W vs. ~$65-69 for the 90W when I got mine. The 840 G3 can use the 45W as well which I know about because I had to buy one to get by while the HP purchased unit was delayed for days.
If for some reason the power adapter does not help, then you may need to replace the battery, or run without it - these are old enough batteries are beginning to wear out."
You should just pull out the motherboard and see if you can find visible burn or burnt marks on the motherboard to see if its shorting when component is in use, Or you should just do a full run down on the trouble shooting guide on how to find the problem and fixing it.
