I uninstalled Guild wars 2 by accident
Your characters and stuff will be there. That stuff stays on GW2’s side of things. 
The Burninator
As long as you remember you login ID and password and only be logged into the game on one machine at a time, you can have the game loaded on a dozen different machines and still have access to your characters. What you paid for was an account and all your account stuff including your character, your bank, your wallet, etc. is on ANet’s servers.
All you loss was your screenshots folder.
We are heroes. This is what we do!
RIP City of Heroes
RIP City of Heroes