If you are having issues with your Dell Inspiron overheating quite easily, CLEAN THE DUST OUT OF THE FAN!
It’s very easy to do.
Remove your battery first. Make sure you touch something metal so you don’t shock your computer and ruin it.
Flip your computer upside down and remove the piece on the bottom that looks like an “L”.
When that comes off, you’ll see a lot of metal, but you just need to carefully unscrew the four main screws you see, then remove that part and find any and all dust and get it out of there. When you clean it all out, carefully replace the parts and it should be fine again!
My computer was overheating often to the point where it would just shut down. I found a chunk about 1/4” thick and 1” wide in there. After I removed it, it doesn’t even get close to hot.