I cannot sign in
Verify your email, check that your device clock is accurate, then use Forgot Password. Repeated attempts are rate-limited for account safety.
Windows shows SmartScreen
Compare the SHA-256 checksum with the dashboard and confirm the installer came from the protected download flow. Do not bypass warnings when the values differ.
Device limit reached
One Windows computer is allowed per account. Submit a device-reset request from the dashboard; support can review and reset the old authorization.