Signing in with a password and a verification code means your Gmail account is more secure. When you remove this extra security layer, you will only be asked for account password when you log-in, which makes it easier for someone to break into your Gmail account.
3. A pop-up window will appear to confirm that you want to turn off 2-Step Verification. Then Select Ok.
If you used App Passwords to authorize applications to access your Gmail Account, you may see errors when you turn off “2-Step verification”. If this happens, re-enter your Gmail Account password. Google recommend you go back to using passwords — rather than App Passwords — to access these applications. To revoke your app passwords, please follow the given steps:
Today everyone have multiple accounts for there different use.But Some time this facility turn in problems due to forget password ,user id or any other reason after that they need Gmail customer service