I have it downloaded for me before you're going to install it you need to install one more tool that is Dynamics 365 SDK
downloaded and I have the ex here downloads all right so here I have Dynamic 365 sdk when I'm trying to install it it might show you some error about the protected mode so go to more info it will show you the information and click run anyway all right click yes so that installation of this package.
start installing the SDK first after that we will navigate to install option of your developer tool kit all right so we got both this files downloaded.
Then click OK to accept the Microsoft software license teams click continue select one folder where you need to extract this application like okay so it will take a few minutes to extract it once it is extracted then you can install it.