Confusing keyboard issues after 10 months of use

[Unequal]

My laptop' s in-built keyboard started acting incredibly strange out of nowhere, The f2, f7, f8, f11, Numpad-8, Spacebar, Tab, M, V, and the down and right arrow keys stopped working entirely, up arrow triggers right alt, right alt now triggers numpad-enter, numpad-enter triggers down arrow,  right control triggers page down, and the slash on the numpad now triggers insert. I don't think it's a driver issue because booting into windows yields the same results.

[amith02]

This problem is not a hardware problem. It is a windows related problem 

Go to Control Panel/Ease of Access/Mouse/

Turned off - Mouse Keys Use numeric keypad to move mouse around screen

If this is not then your keyboard have to replacement.

[iomare]

Hi,

If you enter BIOS at startup, do the keys work corectly (such as the arrow keys)

If you attach an external USB keyboard, does it function correctly?

Let me know,

David

[Unequal]

It's a yes to both questions

Quick Edit: It's happening intermittently now, it'll stop working for an annoyingly long period of time and then start working normally for a short while

[iomare]

OK.

Are you able to enter diagnostics at startup with the F2 key

I believe there is also the keyboard test.

Does it pass the test.

Has any liquid recently been spilled on keyboard?

Let me know,

David

[Unequal]

1. The only two options available for in the diagnostics tool were the memory and hard drive checks.
2. No spills, at least to my knowledge. I did use a bit of isopropyl alcohol and a toothbrush to clean the residue left behind by a sticker about a month back, but ended up just taking off all the keycaps and scrubbing them clean over a sink (Although dropping 2 keycaps down the drainin the process)