A large number of people would die within 1 minute of all technology disappearing.
Imagine being on the top floor of a building when this happens. That is a long way to fall when technology suddenly disappears. Also, anybody in cold areas would be screwed. Assuming that it's also not possible to make technology, nobody could make tools to hunt or fire to keep themselves warm. Nobody could tie anything together since any vines or plants or whatever disappears as soon as they are used. It would be a really, really tough day.
The next day, all technology suddenly reappears and people move back in to houses and try to sort out what just happened and loot stores and stuff like that. I suppose that life would move on and society would rebuild, but it would take several decades to repopulate the world and get society back to where it was.
