Sending, receiving, and organizing email in Outlook.com
Hello, thank you for reaching out to Microsoft Q&A.
With a Microsoft account (without any Office 365 Subscription), you get 5GB of OneDrive and 15GB of Outlook email storage.
If you've exceeded your available cloud storage limit for a few days, your storage will be frozen. So, after you upgrade or free up space in your storage account, it may take 2–4 hours, or up to 24 hours, for your account to be unfrozen. If you are still having issues after 24 hours, I recommend emailing your problem to the Microsoft OneDrive support team using the link below.
https://onedrive.live.com/?action=feedback