Solved! My keys aren't working.

[imonlyusingthisafewtimes]

So, some of my keys will start to flicker on and off then never work again. This started happened with my A and S keys first, ( I don't know if this is related to me gaming, I use WASD a lot. ) Then Z and X, and now D. It happens randomly, I barely use X and Z. This is my parents laptop, also. I now use an onscreen keyboard to type, but this is getting really annoying. Please help!

 

[hang-the-9]

Usually it's simply a mechanical failure. Test it with an external keyboard and see if that works normally. If it does, many replacement keyboards are pretty cheap on eBay, in the $20-30 range.