Hi @Tianyu Sun-MSFT
Thanks for your answer. I will send your suggestion to the user.
Meanwhile i received a image of the Error Msg i enclose here.
It could match with your suggestion ?
Thanks for your help.
My programs created with VB 2010 Express have been opened and compiled with Visual Studio 2019 using Frameworks 3.5.
The problem is that no user can open or run my programs anymore. On my PC programs are running.
I have searched and found some related comment but no solution.
I enclose 4 images:
With one word: None of my programs can be opened by other users using Windows 10 updated.
Please help to resolve this problem.
Many thanks in advance.