Registry Tool Search finds........but not deletes

I wanted to delete the key : HKEY-LOCAL_MACHINE / SYSTEM / WPA / PosReady

This key PosReady is found, I then deleted it.........all looks OK.

However when looking into the Registry using regedit I see that the key PosReady is still there.

Why jv16 PT 2014 not deletes this key ?

Why is no error message given ?

thanks for help

Hans