Sound alert and no letter when a key is hit on the keyboard?

Whenever I hit the key to the right of the "shift" key, a sound alert occurs and no letter appears. That's why I can only describe the key, and the type it here. What am I doing wrong. I've replaced the keyboard to no avail.

I have dowloaded a upgrade utility for my laptop from lenovo website but when I try to upgrade it I get a blue screen error and my notebook reboots.... Please help.
Kind regards
Faisal

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