Typing Issues with Win 10 64bit

Apologies if this has already been asked/answered, couldn't find it after a quick search.

When I type in Windows 10 on pretty much anything - chrome, open office, celtx (writing software) - the cursor will frequently jump to a random point, could be the middle of a word or the space between paragraphs. This is obviously quite annoying, even more so as I'm a writer and it means I can't do my job properly.

Also, sometimes when I open a web page it will highlight sections of the page, like I've clicked and dragged across the page, even when I haven't.

I've tried to update drivers but it says they're all up to date. I will try that again but any one with any suggestions, well, I'm all ears.

It's happened about 5 times just typing this out and a new one just happened where it jumped to the 'additional options' box at the bottom like I'd clicked on a tick box (I hadn't). And no I'm not leaning on the touchpad or doing anything stupid like that. 100% software problem.

Using an ASUS k55a laptop running windows 10 64 bit

Thanks in advance

Hello and welcome to tenforums ,key pads can be finicky for sure ; a test do do , If you have a regular keyboard around ,wired or wireless ,give it a try and see if it jumps around