Excessive CPU Usage

I have a hard time running programs because its always lagging. Even if I run a single tab. Even if I run a single program. And even when it's idle on the desktop screen with no running programs. It always seems to use like near 50% of CPU then goes to 100%. I always kill some processes, services(irrelevant) and all startups in Task Manager but still to no avail. Here's some of my system info:

Intel Celeron Processor N3350
Intel HD Graphics
2GB DDR3 L Memory

I know Windows 10 has the minimum requirement of 2GB Memory to run. But why was this already installed with Windows 10 in the first place. I hope I can find a solution to this, somehow. Any help is appreciated.

I guess the model name is Acer Aspire ES1-132
I'm not really sure but I think it was already in Windows 10
Its an HDD one (500 GB and still plenty of room but a lot of cluttered files about)

How Acer could market this Notebook with W10 is beyond me.

I know right. That is what I figured.

But is Linux compatible with a lot of things though? Like, everyday stuff that you would use with Microsoft? ( Excel, Word, Powerpoint) And can I switch back to Windows quickly?

I know this seems stupid, not very computer-literate when it comes to the things I haven't tried lol

Sorry about this.

What why?

Seems like I already got what I needed to know. Guess no more relying on this tin can. But yeah, huge thanks.

I actually have another laptop which is just sitting there in some drawer. I don't know if its any good so I opened up another thread to see.