Completely Remove All ARC

Occasionally, ARC needs to be removed entirely from your system. This could be reinstalling from a fresh instance or if you are no longer using the software. These instructions will detail every step to remove ARC altogether. However, this will not explain how to remove the ARC projects folder in your My Documents. We do not instruct you to remove that folder because it contains your personal projects, and we do not want you to delete them accidentally. If you wish to remove that folder alone, do so at your own risk. Ensure you have the project files backed up to the Synthiam Cloud if you want to delete your project folder.

Follow these steps to completely remove Synthiam ARC from your computer.

Step 1: Close Any Instance of Synthiam ARC

Before uninstalling, make sure ARC is not running. If it is open:

  • Click the X in the top-right corner of the ARC window.
  • If it does not close, open the Task Manager by pressing Ctrl + Shift + Esc.
  • Find ARC.exe in the list, right-click it, and select End Task.
Step 2: Reboot Your Computer

Restart your computer to ensure all ARC-related processes are fully stopped before uninstalling.

To restart:

  • Click the Start button.
  • Select Power > Restart.
Step 3: Uninstall Synthiam ARC

To remove ARC from your system:

  • Press Windows + R, type appwiz.cpl, and press Enter.
  • Find Synthiam ARC in the list.
  • Right-click it and select Uninstall.
  • Follow the on-screen instructions to complete the process.
Step 4: Delete the Remaining Files

Some files may remain after uninstallation. Manually delete them:

  • Open File Explorer (press Windows + E).
  • Go to C:\Program Files (x86) and delete the Synthiam Inc folder.
  • Then, navigate to C:\ProgramData (hidden by default; enable hidden files in View settings).
  • Delete the ARC folder.
Step 5: Remove Registry Entries

To ensure complete removal, delete ARC registry entries:

  • Press Windows + R, type regedit, and press Enter.
  • Navigate to Computer\HKEY_CURRENT_USER\SOFTWARE\ARC by Synthiam.
  • Right-click the ARC by Synthiam folder and select Delete.
  • Close the registry editor.

Warning: Be careful when modifying the registry. Deleting the wrong key may cause system issues.

Step 6: Reboot Again

Restart your computer one more time to ensure all changes take effect.

  • Click the Start button.
  • Select Power > Restart.
Optional: Reinstall Synthiam ARC

If you are removing ARC to reinstall a fresh copy, you can download the latest version here:

Download Synthiam ARC