Microsoft, doing its best to facilitate its Edge and web platforms, is giving away free VMware and VirtualBox virtual machines. Developers can download -- free of charge -- VMs running: XP, Vista, Win 7, Win 8, Win 8.1, or Windows 10. The images are aimed primarily towards developers that need to test software with IE versions 6 through 11 (and, of course, Edge).
The VMs expire after 90 days, but Microsoft recommends "setting a snapshot when you first install the virtual machine which you can roll back to later." Which, incidentally, is something rather trivial to do with VirtualBox:
Meaning, if you need to use an image for more than 90 days, that won't be much of a problem either.
So if you are a developer that needs to test apps running in older versions of Windows or IE, head over to Microsoft's virtual machine download page.
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