Download Windows
Windows 10 *.iso download
Windows 11 *.iso download

Download Rufus
Rufus Website to download (scroll down to "Download")

Setup *.iso on USB

Insert USB into PC

Go to Downloads folder and open downloaded Rufus file (rufus-#.#.exe)

From the top of Rufus:

Device: (choose your USB stick)
Boot selection: Choose Disk or ISO image
click on SELECT and choose your downloaded Windows##.iso file
(By default the rest should be ready to go, please look over to verify compliance with your needs and system)
click on START

When finished, exit Rufus and remove USB stick from PC