Have you deleted files from OneDrive for Business which you still need? You can recover them from the Recycle Bin:
- Log in to the Microsoft Office 365 page or open the app.
- At the top of the page, select Sites, or choose OneDrive in the app’s start program.
- Click on the Recycle Bin in the menu on the left and select the files you want to restore. Click Restore Selection and OK to confirm.
Can't find the file in the Recycle Bin? You can look in the Second-Stage Recycle Bin. Click on the Second-Stage Recycle Bin at the bottom of the screen.