TurboTax Error Code 630 usually occurs during activation when the software can't connect to the activation server. To fix it, ensure your internet connection is stable. Disable any firewall or antivirus temporarily that might block TurboTax. Run the software as an administrator and update your operating system. If the issue persists, reinstall TurboTax. To prevent this error, always u... https://install-turbo-tax.com/how-to-fix-turbotax-error-code-630/