AppNee never intended to release the Windows setup ISO image files (not only because they have too big file size), but the following two reasons direct cause we have to do this for so many pure Windows players:
Windows 10's design and performance shrinks drastically
On the whole Internet, it is almost impossible to find any clean, untouched, official Windows setup ISO files
Although Microsoft does not support Windows XP updates any more, I'm sure there are still many users using it due to their personal habits or job demands. Therefore XP's product keys may be necessary even now, and AppNee provided you with the most comprehensive Windows XP product keys here, just in order to provide some convenience.
Windows XP SP4 Unofficial, as its name says, it's not a Service Pack released by Microsoft Official site, but it is so popular that XP's loyal supporters call it SP4 of Windows XP after the official final one - SP3.
There have already been the well-known commercial software VMware Workstation and open source freeware VirtualBox in the field of virtual machine, but in deed, Microsoft actually already has its own virtualization technology - Windows Virtual PC, despite it is a little old and only supports Windows 7.