Keyboard querty row not working

[VPMP]

I have an HP laptop. It has been working perfectly until today all bar the t and y keys have stopped working on the top row of letters (though the square brackets etc are).

I have tried rebooting and installing any updates. I feel sure it some combination of keystrokes I have inadvertently used to cause this, but no amount of googling seems to come up with anything more useful than cleaning the keys, which I have done. 

[MarcusC]

Hey @VPMP 🙂

Thank you for visiting the HP Support Community!

Admin and Mods are here to guide the customer to get the best experience from the Community.

To help volunteers that reply to posts in the Community, please provide more details about your issue. Here are some recommendations of information that can help volunteers to better understand and provide support to your question:

- Exact model of your printer / Desktop/ notebook (if you need help, click here for information on how to find your model number model).
- Operating system (including revisions made with service packs, 32-bit or 64-bit, etc.)
- Connection method - USB, physical LAN, or wireless?
- Error messages - on the printer display and/or computer, any patterns for flashing lights.
- Any system changes before the problem starts (Example: Operating System Update, Software installation);

Regards,

MarcusC