New Player Win 10 i5 game crashes after 5 -10 mins

I suggest you seek help from AoEO discord channel. As far as I know, the developers and other staff at Celeste project are active there, but seem to not interact with forums sadly.

 

Maybe overheating triggering a protective shutdown.

 

Try taking the battery out and running off the lead without it in, if you've had it in but been using the lead. Otherwise yeh prob cooling related. Get a laptop fan stand maybe, or get the internal fans looked at?

 

Download the free stress test program Prime95 and give it a run.
This makes the CPU / ram work hard and hence become warmer.
if your problem is heat related then this will cause the same cut out problems you see when running AoEO therefore proving the cause as thermal related.

Usually with laptops a layer of dust stopping airflow through the CPU's cooling radiator is the problem.

 

No don't be running prime 95 on a system you already suspect is overheating, you're just cooking it more than any game will.

Buy yourself some compressed air and give the vents a good once over and use your laptop on a hard flat surface so it can vent properly.

Is the cooling fan still functioning? (can you see/hear it moving) No fan lasts forever, if the fan fails your laptop will just fall over when it's put under strain. If it's shutting off due to heat, time to get it in the repair shop or look at some DIY level cleanup/repair. Surprised the Intel chip didn't just downclock to cope, but at least it didn't just let itself fry.