keyboard double letter typing issue

[rohitsagar]

hi sir,. i using windows 7 OS. when typing 0,9 & L shows double letter shows...

[Jeet_singh]

Hi @rohitsagar,

Thank you for visiting the HP Forums! A great place where you can find solutions for your issues with help from the community! I came across your post and wanted to assist you. I understand you are having issues with your keyboard not functioning correctly. Don't worry as I have a few suggestions which should help you resolve this issue.

To provide you with an accurate solution, I'll need a few more details:

Could you provide me with the exact model of the notebook? If you are not sure how to find that information, please click here for instructions: http://hp.care/2bygf7l

Have you tried to use an external keyboard and check if that works?

Have you tried to uninstall and reinstall the keyboard drivers?

First off, we need to establish if the issue is hardware or software related. In order to do this please perform a few steps. Let’s do a hard reset first.

Steps:

• Power down the computer and unplug the charger. Then remove the battery only if it is a removable one.
• Hold down the power button of the unit for 15 seconds to discharge static electrical charges inside the machine.
• Replace the battery and reconnect the charger.

Then we need to check in the command prompt outside of windows to see if all the keyboard characters work correctly to isolate the issue correctly to a hardware or software failure.

Steps to do it:

• Power down the unit. When you power it back up, immediately tap the F11 key gently several times.
• It takes you to recovery manager. Here please select the option “Troubleshoot”. Then please select “Advanced options “ and “command prompt”
• Type all the keyboard characters in this black window especially the keys that do not work correctly.
• If F11 does not take you to recovery manager, please keep tapping the “ESC” gently several times the instant you power on the unit. It takes you to the startup menu and you could press F11 from there to go to recovery manager.

For further assistance please visit these links:  HP Notebook PCs - Notebook Keyboard Troubleshooting (Windows 7)

Hope this helps. Let me know how it goes for further assistance. 

To simply say thanks, please click the "Thumbs Up" button to give me a Kudos to appreciate my efforts to help. If this helps, please mark this as “Accepted Solution” as it will help several others with the same issue to get it resolved without hassles.

Take care.