Proof Me Hard Support

Cannot sign in to the desktop app

Use this article when the desktop app does not accept the account you expect.

Updated 2026-06-23 macOS Windows Desktop sign-in

Confirm account identity

  1. 1 Sign in to the website and confirm the account email.
  2. 2 Use the same email in the desktop app.
  3. 3 Check for accidental aliases or different inboxes used during checkout.
  4. 4 Restart the desktop app after signing out and signing back in.

Check local conditions

  1. 1 Confirm the computer has internet access.
  2. 2 Install the latest available desktop version.
  3. 3 Temporarily retry from a different browser if the sign-in handoff opens in a browser.
  4. 4 Contact support with the app version and exact error message if sign-in still fails.

What to send support if this is still unresolved

  • Account email
  • Operating system
  • App version
  • Exact sign-in error

Contact support when the steps above do not resolve the issue.