http://windows.microsoft.com/en-US/skydrive/download-skydrive Skydrive is microsoft version of dropbox, it will create a folder on your harddrive that will sync itself with the cloud and any computer you install it on. Dropbox free account gives you only 2gigs. The promo says that "only if you had an account before" but I just signed up and it still gave me the free 25gigs anyway, and other people too. You need a hotmail account. Install skydrive, enter your hotmail info ect..., it will give you the free 7gig account, right click the icon in task bar and click manage storage, there will be a option for the free 25gig upgrade. It's worth mentioning skydrive upgrade account prices are much cheaper than dropbox, on the order of 1/4 the price. Enjoy!