SkyDrive is an online storage system included in Windows Live, which gives you 25 GB of space that you can sync to your desktop. Here’s how to connect it to your Windows 7 computer as a mapped drive.
First of all, you need to go to http://skydrive.live.com and use your Windows Live account (the same you use to access Hotmail, Messenger, Windows Live Mail or MSN) to log in and create the folders you want to use by using the New menu. You can create private and shared folders and customize the access for every one of them.
After your have created your folders, you will need to link your computer to your online ID so it can access them without asking for credentials every time.
Click on the Start Menu button and select Control Panel.