Hotmail, a well known email service provider, gives you the option of accessing your files from anywhere. You can store documents and share files from anywhere around the world. Also, you can make files private, share them with contacts or make them public. This service provides 25GB of storage and the size of each file can be up to 100 MB.
Follow this step by step tutorial to learn How to access free online storage with SkyDrive in Windows 7.