dear friends
opera is stop to support in windows 7 and wnidows 8 and windows 8.1 because they cut off support for security reasons
if you want not seen menu top right corner has turn red
you can block update
in desktop in opera right click and properties in opening screen there is a target text near the target area text
at the end of the target you must add --disable-update
(exe blank --disable-update) and your opera browser not take update and red menu is not seen
i have got same problem and i have mailed opera 4 times they are not dealing with my problem and everytime they are sending me same mail text
they can not dealing with customer problem