For links see the main step 1 of this article.
Download Windows XP ISO file and copy the license key as well and save it on a notepad.However, steps will be the same for Windows 8, Windows 7 and Windows Vista. Here is the glance of the steps we are going to follow for the installation of Window XP Virtual Machine using ISO file on VirtualBox running on Windows 10.
Step 8: Installing Window XP Windows XP virtual machine on VirtualBox