First open any browser like (chrome,Mozile firebox ,Microsoft edge and opera mini … etc)
Search Microsoftdownload windows 10 iso file and open the microsoft site or go to direct link : https://www.microsoft.com/en-us/software-download/windows10
scroll down , see Create Windows 10 installation media and click download tool ,wait untile finish download
open the download tool file and click yes and wait few minutes for ready
Accept all the rules of windows 10 file and wait few minutes for ready
see (what do you want to do ),if you have already windows 10 installed then click first upgrade pc now
if you don’t have windows 10 installed then click on second (create installation mdia like usb,DvD or iso file.)for another pc
click next,select language ,edition and architecture and click next
chose where you download file use like( USB or ISO pc file ) and click next
your download progress start and wait until finished and donot close or off your pc untile finished download.