While you can use Alt + F4 to bypass the prompt for now, @artamous. It's important to note that QuickBooks Desktop (QBDT) 2018 has been discontinued, and relying on this workaround will not guarantee in the long run.

And, yes, since Internet Explorer (IE) is no longer supported, QBDT 2018 will not function effectively. However, if QBDT is installed on a Windows computer that has IE 11, it will operate in that setup.

Given that your version is outdated, you will miss crucial updates, patches, and support services, including banking features, live support, online backup, and important security updates, which could pose challenges down the line.

In this case, I recommend upgrading your QBDT to the latest version to ensure you have access to the latest security updates, features, and services that can enhance your business management. Then, you can follow the article about updating your company files to a new version later on.

If you have further questions about accessing your QBDT account and company file, please don't hesitate to click the Reply button below. We'll make sure to respond to you promptly.