If your Windows OneDrive is always full, you now can get 100GB of free extra space. At least for two years until February 2017. Claiming them is quite easy. The offer is valid until the last day of February, so you better hurry up.
New accounts come with 24 credits which you can spend on various offers. The free 100GB OneDrive storage costs just one of them. As bing rewards is only officially available to US customers, foreigners are excluded from the offer..
But there is an easy workaround. Just use a US based proxy or VPN service to get a US based IP adress. VPN.CC offers a free three days trial with which you can claim your free 100GB OneDrive storage.