Laptop keyboard not working not not to logon windows 7

I recently installed Windows 7 on my laptop and everything seemed ok. For about a week now, however, the keyboard does not work on the logon screen. So I can't send the Ctrl + Alt + Delete keys. The mouse still works and the keyboard works at boot because I am able to choose Safe mode or start windows normally. I always stopped abnormally before getting the keyboard works. What should I do?

What do you mean. "stop abnormally before getting the keyboard works."  He works the next time?   What happens if you connect an external keyboard?

You can view f the manufacturer of the laptop has a driver Windows 7 chip set available.

Tags: Windows

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