When I opened Minecraft Launcher, i was unable to find all my previous installations, there was only latest version and latest snapshot, its like the laucher was set back to default settings.

What I expected to happen was.
All my installations should be there, they are all in separate folders inside the .minecraft folder in %appdata%

What actually happened was...:
They werent there, and i cant access my worlds and games

Steps to Reproduce:
1. Nothing, it just happened when I ran minecraft.