Error 0x80070490 when trying to add Gmail to Mail & Calendar
https://answers.microsoft.com/en-us/windows/forum/all/error-0x80070490-when-trying-to-add-gmail-to-mail/296531f8-9863-4e37-9878-c2bd44588716
WEBJul 8, 2021 · When you add an account to Windows 10 Mail, "Google" will be one of the options. After selecting this and entering your gmail address and password and two-factor code (if 2FA is enabled - and it should be; if it's not, set it up), you should see one more list that allows you to enable what will sync. The calendar will be one of those choices.
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