How to Get Administrative Access to the OneDrive for Business Environment of a User

If you are familiar with SharePoint Online, you might recognize some of these steps to get administrative access.

• Go to the Office 365 admin portal.
  
• Open the SharePoint admin center.
  
• On the left, choose user profiles.
  
• Choose Manage User Profiles (see figure 2).
  

 
Figure 2: Manage User Profiles

• Find the user you would like to have access to. For this article, we’re using Sara Davis.
  
• Open the item menu of the user.
  
• Choose Manage site collection owners (see figure 3).
  

 
Figure 3: For administrative access to OneDrive for Business, click the Manage User Profiles item menu

Add your administrator account (figure 4) to the list of site collection administrators.

 
Figure 4: OneDrive for Business site collection admin

After executing the steps above, you will see all files and folders (figure 5) for the current user.

 
Figure 5: You now have administrative access to the user’s OneDrive for Business account

Ref: https://www.itunity.com/article/administrative-access-onedrive-business-environment-user-2792