The message you received is an update notification and not a bug nor a feature, jiander

After October 15, 2025, Microsoft will stop all security updates for Windows 10. Computers with Windows 10 will then be at higher risk of cyber threats and viruses. To protect your personal information, including Social Security numbers and bank details, we strongly recommend you upgrade to Windows 11.

With this, a mandatory pop-up appears when you open QuickBooks to ensure all users confirm their understanding of the security risks associated with using an unsupported OS. Because this is a necessary safety notification, you cannot disable the alert, even if you are part of the extension program.

You can refer to this article for detailed information about upgrading your Windows OS and other frequently asked questions about the upgrade: Microsoft is ending support for Windows 10 OS.

Please post in the Community forum again for other questions, and we'll respond promptly.