9 Legend

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87.5K Posts

October 14th, 2011 04:00

The Dell diagnostics (F12 at powerup) includes a keyboard test - run that.

4 Operator

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3.8K Posts

October 14th, 2011 04:00

Hi,

Welcome to the Community. Does this happen with only a certain application or anywhere. Click on start, run, type in cmd and press enter, try using the underscore key in the black box to check if it works.

Thank you

Royan

9 Legend

 • 

47K Posts

October 14th, 2011 05:00

There is something wrong with the keyboard or the interface if an external USB keyboard does not do the same thing.

Has there been any liquid spilled into the laptop?

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