Unity has made a major change back in 2017. It means that older computers have issues with the new Unity 5, because manufacturers don't support anymore the old GPU. There has been several topics about this. Not all your customers have the mean or the need to change their old laptop (mine works fine, no reason to change it.).
I have found months ago this post in the Unity Blog @ https://blogs.unity3...ting-directx-9/
Here is a the picture:
Please could you tell us if it would be possible to check this line?
I know that you care for your customers.
I thank you in advance for your kind answer
PS: I am stubborn.. never say die