Written for Synergy 3 (v3.8.4), checked 20 October 2026.
Go to Local settings (under Advanced). These settings apply only to the computer you change them on.
- Check for updates: lets Synergy 3 tell you when a newer version is out. When one is ready, Update available appears at the bottom of the settings list.
- Receive beta updates: offers you beta versions as well as stable ones. It's available while Check for updates is on.
- Appearance: System follows your computer's light or dark setting; Light and Dark fix it.
- Run on the login screen: lets you use your shared keyboard and mouse on this computer's login screen, before anyone signs in. Available on Windows and macOS; on Linux it's greyed out. On macOS, see also: Starting automatically at login
- Config file location: the text config file Synergy 3 makes from your layout on this computer. Useful when our support team asks for it. Export config file… saves a copy of your layout as a config file wherever you choose.
- Configure this computer with an external config file (advanced): runs this computer from a text config file of your own instead of the Screen layout. How: Creating and using text config files
- Reset all settings to default: Reset settings deletes this computer's Synergy 3 settings. The steps, and what to do if Synergy 3 won't open: Resetting your settings and finding the settings files
A setting your administrator has locked is greyed out and says Set by your administrator for this computer. How locking works: Locking down settings so users cannot change them
If you see Could not enable run on login screen., Synergy 3 couldn't get the permission it needs. Try again, and on macOS approve the prompt that appears.