The winter palace was not stormed. The number who took part in its capture was no more than a few hundred. Some people say this shows that it was a military coup. Others still insist the lack of support doesn't negate the fact that it was a popular revolution. Perhaps the way to look at this is the fact that there was mass apathy.
Nobody wants to come out and fight for the either side.
When they took the Winter Palace, they found in its basement the largest wine cellar ever known to history. There was the supply of the Tsar's favorite wine, a Chateau Decalme of 1847, the grandest of the grand vin. And the lynching mob that had taken the Winter Palace immediately began ransacking these cellars. The Bolsheviks didn't know how to control the situation. They tried to brick up the cellars with a wall but the mob simply knocked it down.