Warning "require TLS1.2"

Let me help you get rid of the TLS 1.2 error and get you back on track, @Atsuko.

To open QuickBooks without getting the error, let's perform the following steps: 

1. Open IE 11.0.21 (KB4074736).
2. Go to the Settings and choose Internet Options.
3. Click Advanced and select Security.
4. Uncheck TLS 1.0, 1.1, and ensure that TLS 1.2 has a checkmark.

I've also added this link to learn more about TLS 1.2: TLS 1.2 for QuickBooks Desktop for Windows.

Just in case you need help in troubleshooting QuickBooks Desktop and Internet Explorer, take time to read this article: Verify and Troubleshoot QuickBooks Desktop and Internet Explorer settings.

Let me know how it goes in the comment section. I'll be here to keep helping. Have a wonderful day.

Thanks for performing the steps my colleague provided, Atsuko.

You may need to run QuickBooks as an administrator, which establishes correct Internet security settings. Here's how: 

1. Close QuickBooks.
2. Right-click the QuickBooks icon.
3. Select Run as Administrator.

If you get the same result, you can reach out to our Phone Support Team who has the tools to further check your account. They can identify the root cause of why you're still prompted with the warning. 

Here's how: 

1. Click Help from the menu and select QuickBooks Desktop Help.
2. Select Contact Us.
3. Enter a  brief description of something about getting the required TLS 1.2 warning.
4. Click Let's talk or Continue and select the best way you'll want to connect with us.

Alternatively, you can use this link to contact us outside the system: https://quickbooks.intuit.com/learn-support/en-us/contact.

Feel free to use this link on how to update to enable TLS 1.1 and TLS 1.2 as default secure protocols in WinHTTP in Windows.

Let me know how this works. Take care and have a great day!