Can my work Access my OneDrive?

Can my administrator see my OneDrive files?

Anything stored on OneDrive business can be viewed by the 365 account admin user. If you have Win10 on your personal PC you can also use OneDrive (personal) that is included with win10, This can be kept completely separate to the OneDrive Bus.

How can I tell who has access to my OneDrive?

Manage access to a file or folder1The Links Giving Access section shows the links that have permissions to the file or folder. Click the ellipsis (...) to see the users that the link has been shared with.2The Direct Access section shows people and groups who have direct access to the file or folder.See who a file is shared with in OneDrive or SharePoint