Read an interesting article (and fortunately I haven't had need for this yet) on the recovery key location in SkyDrive. http://windows.microsoft.com/recoverykey or http://skydrive.com/recoverykey are links that will redirect you to the location in Skydrive where the Surface for Windows RT is stored. Since I have multiple people using my Surface, there was an article that points out if someone else helped you setup Surface, they may have the recovery key (the article was titled "Windows RT stops responding"). Good information to have handy in the event you need to reset or do troubleshooting.
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