нет худа без добра

1) General subject: a blessing in disguise, blessing in disguise, ill wind ((полный вариант звучит как it's an ill wind that blows good to nobody - дословно "плох тот ветер, что не принесет хоть кому-то хорошее"), it is a mixed blessing

2) Set phrase: bad luck often brings good luck, every cloud has a silver lining (something good and useful may turn out to be the result of a bad happening), every cloud has its silver lining (something good and useful may turn out to be the result of a bad happening), every dark cloud has a silver lining (дословно: Всякое тёмное облако серебром оторочено), every white has its black, and every sweet its sour, it is an ill wind that blows nobody good (дословно: Плох тот ветер, который никому добра не приносит), it's an ill wind that blows any good, it's an ill wind that blows nobody good, it's an ill wind that turns none to good, no great loss without some small gain, no great loss without some small gain (дословно: Не бывает большой потери без хотя бы малой выгоды), nothing so bad as not to be good for something, nothing so bad in which there is not something of good, nothing so bad, as not to be good for something (дословно: Нет ничего настолько плохого, что бы для чего-нибудь не было полезным), the darkest hour is near the dawn, it's an ill wind that blows nobody any good

3) Current usage: every cloud has silver lining