Hello Wallflowers, what version of Windows are you using?
Unity has dropped support for every version of Windows before 10 for Unity versions 2023.2 and later (the Unity version we're using).
We're sorry, but there isn't much we can do to resolve this other than recommend upgrading to a newer version of Windows.
Information from Unity about the issue:
https://forum.unity.com/threads/dropping-support-for-windows-7-as-a-target-for-the-unity-standalone-windows-player-in-unity-2023-2.1443097/