Arma 3 Config File Location (Windows)

Arma 3 stores its config files at %USERPROFILE%\Documents\Arma 3 on Windows. That folder holds the settings rather than a save: keybinds, sensitivity, video options, the layout you arranged. Checkpoint64 already knows it, backs it up automatically and keeps earlier versions, so a config that got reset is one click from restored.

Where Arma 3 settings are stored

  • Windows — %USERPROFILE%\Documents\Arma 3

The settings here is .arma3profile / .cfg / .json files — back up the folder as a set, not single files, so a restore always keeps them consistent.

How to open the config folder

  • Windows — press Win+R, paste %USERPROFILE%\Documents\Arma 3, and press Enter.

Backing up Arma 3 settings automatically

  1. Install Checkpoint64 (free) and pick Arma 3 — the config path above is already preset.
  2. Auto-backup watches the folder and uploads a new version whenever it changes, keeping full history.
  3. Restore any version in one click after a patch resets your settings, a file verification restores the defaults, or you move to a new PC.

For the deeper story — what resets a config and how rollback works — read the full Game Config Backup guide.

Launch options: Checkpoint64 can start Arma 3 with 4 launch options you tick — see what each one does.

Hosting an Arma 3 server? The ports to forward, and how your team can join without forwarding any, are on the Arma 3 server ports page.

Common questions

Where does Arma 3 store config files on Windows?

Arma 3 keeps its settings at %USERPROFILE%\Documents\Arma 3. Checkpoint64 already knows this path and backs the folder up automatically.

Can I back up Arma 3 settings automatically?

Yes — Checkpoint64 watches Arma 3's config folder and uploads a new version every time it changes, so you get automatic backups with version history. Free download for Windows and Linux.

How do I restore my Arma 3 settings?

With Checkpoint64, open the config folder's version list and restore any earlier version in one click — it puts those exact files back, so every keybind and video setting comes back together. Without a backup there is nothing to go back to: the game rewrote the folder with its defaults.