People with relevant experience know what the problem is,i had asked my IT colleague for help (installing Windows 10),he had downloaded the Windows ISO, made a Windows bootable disk from it,this disk can be as a Windows installation disk, and next used installation disk to install Windows 10.
Just like that.
https://www.uubyte.com/make-bootable-usb-from-iso-file.html
Using the method provided by Microsoft to install the Windows system is also feasible,but the steps are more complicated.
https://www.wikihow.com/Install-Windows-10