Help! Team Fortress is Ruined!

I don’t know what to do, I didn’t know where to go, I know this barely pertains to garry’s mod, but I need help! All of my Team Fortress 2 Maps/Models/Meshes are gone! I don’t know what happened! I never deleted anything! I heard something about a Steam UI update and how people are having probs with that.
If no one can figure something out, can someone at least tell me how to reinstall Team Fortress 2? I looked everywhere, and I can’t get an answer anywhere! Please help me!

Go here.
For uninstalling, right-click Team Fortress 2 and select Delete Local Content.

Aw, thanks, man! I can’t thank ya enough right now! :smiley: