Windows 8.1 AIO for 32bit/64bit for Core - Professional - Enterprise (Repair - Restore - Reinstall) Windows 8.1 This disc has been specially designed to allow you to reinstall, repair, and restore any PC or Laptop that still has its Windows product key code. This restore disc can be used to return a Windows 8.1 computer back to factory settings, making your computer run like new! Our disc lets you remove viruses and fix common errors by reinstalling your Windows Operating system. Unlike the other general recovery tools available, this disc has added capabilities that set it apart from the rest, giving your computer a chance to reach its full potential. This disc does not come with a Windows 8.1 product key; however, you can use your computer's original Windows product key with our disc to fully activate Windows 8.1.