Keyboard only hits the keys half the time

So I haven't run my Acer Aspire One 8.9inch (A0A150) in a couple months. I start it up and go into a text editor, and as I type, it has trouble hitting keys. Sometimes the keys take, sometimes they don't. If I use keyboard modifiers, like Shift, it decreases the likelihood that the keystroke will be recorded.

I tried these things:
- Installed all my Windows Updates
- Uninstalled my keyboard from device manager
- Plugged in a USB keyboard (which works just fine!)

Anybody else have any other ideas? Each key will work, but I may have to hit it a few times.

 

So weird, I think I fixed it!

I sprayed some compressed air through the keyboard area. Then I also started massaging the keys. I just kept typing the "quick brown fox jumps over the lazy dog," and whenever a key would not take, I'd just press it hard, and jiggle it for a while, and then do this for each letter, until now everything seems to be working smoothly.