Keybord is not working properly

[MiraCanto]

My keybord isnt working normally.

R key isn't working properly: most of the time it simply doesn't work, sometimes after you press it 20 times, it allows to type a letter.

When I attach external keyboard, all the keys are working perfectly.

The same problem in all apps and browsers.

I didn't make any changes to the settings of my PC prior to the issue.

I tried to blow away all the possible dust/crumbs from the keyboard, all the other keys work perfectly, so it's very unlikely there's something physically is hindering it.

[Huffer]

Its fairly new. Is it under warranty? Keyboard problems are difficult and expensive to fix if you have to do it outside warranty. 

[MiraCanto]

1 year warranty is over, it was bought in Oct 2020 😞

I suppose I'll have to have my whole keyboard changed? **bleep**.