why my latop keyboard suddenly stop working after error happened to the laptop?

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You could try shutting it down and when you start it up press F8 repeatedly until you get a screen with the option to boot to the Last Known Good Configuration. Try this first and see if it makes a difference. A second way to get there.

Start Menu->All Programs->Accessories->System Tools->System Restore. Choose the most recent date before the encountered problem. If it doesn't work, try the next date.

Post the brand and complete model number and installed operating system when asking a question to get the best help. You need to post full details of the problem and what you want to do.

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To get a good accurate answer give the brand, model number, installed operating system of the laptop when asking a question as all PC's are not the same. Hey, I enjoyed your question, I am a retired computer technician. I hope I have helped you...

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CompTIA A+ Certified Computer Professional

are you able to nevertheless circulate the mouse? if so, it ought to easily be a bad keyboard driving force, or the relationship ought to be undesirable (in case you're able to do it without dismantling the computing device, attempt taking it out and disconnecting and reconnecting the flat connector below the keyboard - seek for a handbook). in any different case, this is in all probability in simple terms frozen. circulate into skill recommendations, and set the computing device to not circulate to sleep immediately if this is plugged in. below progressed Settings, attempt putting it to under no circumstances turn off the confusing disk.