Hi @Khalid Ahmed ,
The following thread on the Nvidia forums are discussing about this:
https://www.nvidia.com/en-us/geforce/forums/geforce-laptops/6/386751/windows-os-now-manages-selection-of-the-graphics-p/?topicPage=13&commentPage=3
The above thread gives two links that may be helpful:
"Run with graphics processor" missing from context menu: Change in process of assigning GPUs to use for applications
https://nvidia.custhelp.com/app/answers/detail/a_id/5035
How to Set Preferred GPU for Apps in Windows 10
https://www.tenforums.com/tutorials/103965-set-preferred-gpu-apps-windows-10-a.html
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Best regards,
Leon