salam
kia haal hay app sab ka.mujhay yay poochna hay.kay may nay toshiba ka naya laptop lia hay.us may company kay tarap say origional window vista home premium install hui hay likin may yay format karkay xp install karna chata ho.likin koi esa tareqa ho kay yay window zaya na ho jaye.aur ainda may esay origional form may install kar sako.to es keleyay mehrabani kar karkay koi tareqa bataye.shukria