[Dudi]

Here is how:

1. You must register an Oultook.com email address. If you already have one then go to step 2.
   
2. Upload more than 5GB content to OneDrive in December.
   
3. Wait for Office 365 sign-up email in early next year.
   

"For customers of our free service who have over 5 GB of content and who are directly impacted by the storage change, we
will offer one free year of Office 365 Personal, which includes 1 TB of storage. These customers will receive an email with
redemption information early next year."



Source: http://www.windowscentral.com/onedrive-u...gb-storage