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Can you provide anymore information about your problem?
What's the model of your laptop? How long have you had it? How long has the issue been happening? Did you spill anything on it or know of any reason a key would be sticking? What key is it? etc, etc...
There may not really be a straight up solution to your issue. You may simply have to replace the key or the keyboard if it's a key you use all the time. Replacing keyboards is relatively straight forward. However, you can try to shoot some canned air in to it or see if you can pull the key off and clean it. There's probably a youtube video of some sort that will show you how to take the key off and put it back on or how to replace the keyboard altogether. Some models the keys are easier to take off and some are easier to put back on. Good luck.
take your laptop to the expert who can deal with laptop well.don't try to clean the keyboard yourself because it is easy to remove the keys from the keyboard but then you won't be able to fix them on the keyboard properly. If you still try to remove the keys you can damage the keyboard's key sensors.
If you spilled liquid on your laptop or adapter try placing the object in rice (uncooked). The rice absorbs liquid very well. Leave it in there for several hours (2-3 at least). Afterwards, try turning on your laptop and see if the problem is solved.
Did you or anyone else spilled anything on them? Do you have a pet that may stepped on your keyboard?
What you can do is to take out on of the problematic keys. Disconnect from power and use a small ruler to pop the key out. See if anything is under there. Maybe hair or food. Do not shake your laptop as this can lead to other problems. Get a dry cloth and clean the key base and underneath the key. Reinsert the key and try it again. If this works do the same for the other keys.
Not sure I can tell you anything you don't already know or want to hear but the first thing I would do is flip the laptop over so any moisture from the spill will seep out of the keyboard etc... The problem being that if the laptop was powered up when the spill occurred, there is no way of knowing where that spill ended up or more importantly...what damage it may have caused... By flipping it upside down.. any residual fluid may drain out and you may get lucky and everything come back to life but the downside is that the fluid could conceivably caused a short someplace on the circuitry beneath the keyboard ... ( hopefully that is not the case) but there is always that possibility... If the only thing that is not working is the right and left command buttons... then you may be able to bypass them with an external mouse... With the power shut off to the laptop... try cleaning that area with alcohol and let air dry for a while... you may have residue beneath the two keys that are causing them to stick or always be on /off so pressing them has no effect... Not sure any of this will help you but it may give you some ideas of what to try.. Good Luck...
Depending on how hard it is to remove your laptop keyboard (be careful, don't do this if you don't know how, some laptops are easier than others) you might be able to take the whole keyboard off (not just individual keys). If you can do this, you could try holding it underwater for a few moments, pressing keys and getting them to "unstick." I know normal desktop keyboards you can just throw in the dishwasher (on gentle, if you have it) but that will ruin your laptop... If it's a popular laptop you might be able to pickup an extra keyboard on ebay or something, but you'd have to know how to replace the keyboard. I guess you could take it to the nearest laptop repair place and see how cheap you could get them to do it. =\