How do you fix a driver side manuel window that will not roll up and if you pull it up it just falls back down?

sounds like you window winder spring attached to your winder might be broken or the cogs on the winder have heaps of wear eg not touching sounds like you window winder spring attached to your winder might be broken or the cogs on the winder have heaps of wear eg not touching sounds like you window winder spring attached to your winder might be broken or the cogs on the winder have heaps of wear eg not touching sounds like you window winder spring attached to your winder might be broken or the cogs on the winder have heaps of wear eg not touching