the errors:

  • the alt key always pressed by itself ( it is not actually stuck and pressed).

  • i need to hold super key to be able click any button or entering text box but sometimes i can't type at all. i am not sure if it is because system think i am pressing shortcut or all my keys also broken.

My laptop is: asus x455l

2 days ago i decided to disassemble the components and clean them up. it works for hours until midnight. and in the morning the alt button started acting strange again.

and yesterday i opened the case again and replace the glue (the black plastic) on the keyboard. and it worked for couple of hours maybe 13 hours until midnight, and now (morning) it is starting to error again (the alt key).

is there something i can do? i am okay if i can totally disable the alt button. of course fix it would be better.

  • Take your laptop to a repair shop. – DavidPostill Feb 19 '17 at 23:19
  • i am on limited budget, that is why i am here to find any possible way i can do. thanks for your useful answer. – Kakashi Feb 19 '17 at 23:21
  1. Since you're comfortable with opening the laptop, you could insert a wedge of some sort, e.g. a toothpick, under the membrane to disable the bad key (if you have two Alt keys, this should cause no problem.

  2. Replacement keyboards for some Asus models are as little as US$13. There are also model-specific instructions, including videos. It helps to get a better answer if you state the model number of your laptop.

  3. Unplug the internal keyboard and use an external USB keyboard. Caveat: it might be impossible to use BIOS on a particular model if it does not recognize the external keyboard before booting, so test before unplugging the internal one.

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  • is there any way to disable the alt key via bios? is it possible to buy that black plastic ( i dont know its name) only? i just opened the chase again and clean that black screen using tissue 30 min ago and the errors are gone now (of course i bet it is just temporary). btw can i clean that black plastic or screen using water? – Kakashi Feb 19 '17 at 23:51
  • AFAIK, Device Manager cannot disable the internal keyboard, and I would guess not BIOS. BTW, it's "case" or (less commonly) "chassis", not "chase". As for "black plastic", a picture might be helpful. – DrMoishe Pippik Feb 20 '17 at 0:05
  • i will take picture of it when this laptop acting strange again. i tried to find the pict on the image in google but failed since i dont know its name. thanks for your help :) – Kakashi Feb 20 '17 at 0:10

Assuming you haven't found a fix yet:

You can disable the alt key through the windows registry most likely (Requires care), unless disabling specific keys requires more of a software programming intelligence in order to do so. There are also programs that can do it for you and you can remap it to basically do something else or do nothing most likely.

I'd suggest finding a way to get it fixed or remapping it though. Those shortcuts for Alt + Control + Delete and Alt + Tab are very useful. Assuming you are using windows, in which case, most Asus computers do.

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