I have new HP i5 laptop running Windows 7. It was working normally until 3 weeks ago aprox., then after several updates, the combinations of keys: "Ctrl C", "Ctrl V", "Ctrl shift" and "Ctrl Tab" stop working. The others combinations works well, for new documents, bold, etc. I ask to HP support we updated the hardware related, and I also tried to unnistall all fixes and apps installed since the failure comes, but nothing works. Any of you have a solution or idea of what to do to fix it? Thanks in advance.

It sounds like the keyboard is defective and needs replacement under HP's warranty program. See: How to contact HP Carey Frisch