A Microsoft file hosting and synchronization service.
Thank you. The backup initiated when I opened my laptop and it looks like it backed up Outlook files to OneDrive. When I opened outlook it ask me to open a file which was my work email file and that one has been working fine. Some of the Outlook files are yet to sync but won't sync as it is saying the file is in use? I have tried deleting the account and re-adding it. I have just found the new outlook and opened my email in that file but have lost all my folders for that one account :(.