Install Error 1722 'A program run as part of the setup did not finish as expected'

Symptoms

Setup runs partway and then errors with 1722.

Likely cause

An install script aborted, usually because of antivirus interference or a profile-specific permission problem.

Fix

1. Click OK to dismiss. 2. Run Windows Update so the Windows Installer service is current. 3. Temporarily disable antivirus and firewall. 4. Right-click the installer > Run as administrator. 5. If it still fails, create a new local user profile and install from there. 6. As a last resort, reinstall Windows.

Sourced from militarycac.com. Rewritten for clarity.

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