Stop Sharing
Files in OneDrive
Open the OneDrive folder.
Right-click the shared file and select the Share option. 
Click the three-dotted button in the top-right corner.
Select the Manage Access option.
Click the Remove link (X) button next to the link.
Click the Edit button for the email account you want to
remove access.
Click the Stop sharing option.
Repeat steps 6 and 7 to remove other users (as
necessary).
Once you complete the steps, the files will no longer be
accessible to other people.