To verify an old Google account, follow these steps:
Visit the Google Account Recovery page.
Enter your email and select "Try another way" if prompted for unavailable information like phone numbers.
Use a recovery email to receive a verification code.
Answer security questions (e.g., account creation date or past passwords).
Verify using a trusted device previously used to sign in.
Fill out the recovery form with accurate details if other methods fail.
Once recovered, update recovery options, enable two-factor authentication, and secure your account with a strong password.
How to Verify old Google account?