Windows 8.1 Core Basic Professional Enterprise 32 Bit & 64 Bit All Editions Repair Recovery Restore Re-Install Bootable 8 GB USB Drive Stick This USB will allow you to reinstall, repair, and restore any PC or Laptop that still has its Windows product key code. This restore USB can be used to return a Windows 8.1 computer back to factory settings, making your computer run like new! This USB lets you remove viruses and fix common errors by reinstalling your Windows Operating system. This USB 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.