Add a Mapped Drive to SkyDrive on a Windows RT Device

Open Internet Explorer and go to http://skydrive.com/

Once logged in, right-click the Files menu item and select Copy Shortcut.

SkyDrive Folder

This will give a shortcut in this format:
https://skydrive.live.com/#cid=123456789ABCDEFG
You care about the part after cid=, e.g., 123456789ABCDEFG, which is your CID value. We will need this later.

Open Explorer on the Windows RT device and select Computer in the navigation pane; in the Computer tab of the ribbon select Map network drive.

For the path enter the following:
https://d.docs.live.net/, e.g. https://d.docs.live.net/123456789ABCDEFG

Click Finish; you will need to enter your SkyDrive login account and password and select to remember credentials.