A Microsoft file hosting and synchronization service.
If the university Microsoft 365 account was deleted less than 30 days ago, recovery is only possible through the university’s tenant administrators; there is no end‑user self‑service recovery once the account itself is gone.
From the service side, the normal process is:
- Within 30 days of user deletion, an admin can restore the user account in the Microsoft 365 admin center. This also restores access to the user’s OneDrive and data.
- If the user is not restored but more than 7 days have passed since deletion, the OneDrive is moved to the site collection recycle bin and can still be restored by a SharePoint/OneDrive admin using PowerShell.
- After the OneDrive is restored, an admin can grant themselves (or another account) site collection admin rights to access and export the data.
Concretely, the university’s Microsoft 365/SharePoint admin (not general IT helpdesk) would:
- If the user object is already gone from the admin center (more than 30 days since deletion of the account), attempt to restore the OneDrive directly via PowerShell:
- Install and connect with SharePoint Online Management Shell as a SharePoint Administrator.
- Check if the deleted OneDrive site still exists:
or, if the OneDrive URL is known:Get-SPODeletedSite -IncludeOnlyPersonalSite | FT urlGet-SPODeletedSite -Identity <URL> - If it appears, restore it:
Restore-SPODeletedSite -Identity <URL> - Then assign an admin to access the data:
Set-SPOUser -Site <URL> -LoginName <UPNofDesiredAdmin> -IsSiteCollectionAdmin $True
- If the OneDrive has already passed its retention window and is no longer in the deleted sites list, there is no native Microsoft method to recover it.
For work/school OneDrive, deleted items inside an existing account are normally recoverable for up to 93 days via the OneDrive recycle bin or by using “Restore your OneDrive” (which can roll back the entire OneDrive to a previous point in the last 30 days). However, these options require that the OneDrive and account still exist and be accessible.
Given that the university IT has stated that the server/account was deleted and is no longer accessible, the only remaining possibility is for a Microsoft 365/SharePoint global or SharePoint admin in that tenant to:
- Verify whether the user account is still within its 30‑day soft‑delete window and restore it; or
- Use the SharePoint Online Management Shell to check for and restore the deleted OneDrive site as shown above.
If neither the account nor the OneDrive deleted site exists anymore (for example, if the tenant has already purged them beyond retention), there is no further recovery option from Microsoft’s side.
References:
- Restore a deleted OneDrive
- OneDrive retention and deletion
- Restore deleted files or folders in OneDrive
- How to recover missing, deleted or corrupted items in SharePoint and OneDrive for work or school
- Restore your OneDrive
- Find lost or missing files in OneDrive
- Unable to restore deleted files from C:OneDrive - Microsoft Q&A
- How do i retrieve lost data from the month before? - Microsoft Q&A