the windows 8 I installed have changed @ and "..
at the key where @ is supposed to be, " is there and at the key where " is supposed to be, @ is there..
it seems that the keys are reversed..
How to solve this!!
plus i also, tried another copy of windows 8 but same result..
sounds like you need to change your keyboard input settings. As an example, I'm from the UK but if my keyboard is set to a US keyboard then I see exactly the same as you with the two keys you mention swapped around.
Check the screenshot above and you'll see where you can change this via the control panel.