when typing web pages open for no reason???

When i am typing in any program, all of a sudden it keeps trying to open yahoo mail! i have set it to do this with any keys, and it is soooooooo frustrating (happen 24 time so far in writing this!!!!)
Nothing shows up on virus search - i'm at my witts end - please advice! (all HP desktop & wireless keyboard!)
Still does it when wiped pc and reinstalled windows!

 

Does your keyboard have a mail button? Maybe its stuck.

 

It does have several shortcut buttons at the top, however none are stuck or pressed during anylasis.
Tried turning the short cut feature off, but wont let me! really frustrating!

 

Try a new wired keyboard for a bit and see if it does it.

 

to be fair that was my next point of call, just would prefer to solve the prob, then avoid!

 

Well if a new keyboard works then we know its something wrong with your old keyboard or drivers.