I appreciate your response for clarifying the Windows version you are using, jiander-snap.

To begin with, may I ask which specific version of Windows Server 2019 you are using?

The message pop-up you have encountered stating that QuickBooks detected Windows 10 OS even though you are actually using Windows Server.

Please note that QuickBooks supports Windows Server 2019, specifically the Standard and Essentials versions. If your Windows Server 2019 version falls outside of this support range, it could cause QuickBooks to misidentify your operating system.

For further details on system compatibility, you can refer to this article: System requirements for QuickBooks Desktop 2024.

Please make sure that your computer meets QuickBooks system requirements to ensure optimal performance of QuickBooks on your system.

Please reply to this thread if you have additional information you want to clarify or need more assistance.