hi guys if you want to install windows without Pendrive you can do that very easily you have to my steps by steps go let get start it
Steps.1 first you need your iso file if you don't have it so go check out the previous post click the link https://techwithbroyt.blogspot.com/2021/01/how-to-activate-windows-10.html
Steps.2 when you have your iso file now you have to extract your iso file
Step.3 when you extract your iso file go to the Sources folder and find the Setup file
Step.4 when you get your Setup file you select and click right and Run as administrator
Step.6 now you see Setup is copying temporary files
Step.7 in this window you have to select (No Thanks)
Step.8 now you can see Activate windows
Note: if you have windows key use it if Not so select (i don't have a product key)
Step.9 now you can select your windows and check right on ( i accept license terms)
Step.10 now you have to select custom: Install and select your path where you want to install your windows and click next
Step.12 now you can see it's copying your windows files and after that, it's going to install your windows
Step.13 when your windows in bootup you can see you have two windows
Step.14 now you can see your window Starting Services and Getting devices ready
For more information, watch this video and you will see how to do it properly