The entire site disppeared

Question

All files in my team site went missing... the site page cannot be opened, it says 404. Only a few empty folders and a few files available on my laptop. What do I do?

Answer 1

Dear Yueqi,

Good day, and thank you for reaching out to the Q&A Forum. I'm truly sorry to hear this has happened. Having an entire team site return a 404 while most files also disappear from your synced folders is understandably alarming. As a forum moderator, I genuinely wish I could inspect your SharePoint environment and restore the site directly. Unfortunately, my role here is limited to providing general guidance and steps you can pass on to your administrator. The good news is that if the SharePoint site was recently deleted, a SharePoint administrator may still be able to restore the entire site along with its files and settings.

Before anything else, please:

• Pause OneDrive synchronization on your laptop.
• Avoid deleting, moving, or editing the remaining local folders.
• Copy any files that are still available to a separate folder outside OneDrive, an external drive, or another approved location.

Please do not unlink OneDrive, reset the sync client, delete the local site folder, or empty any recycle bins until your administrator has investigated.

Next, contact your IT administrator urgently. A SharePoint Administrator or Global Administrator should immediately:

1. Open the SharePoint admin center.
2. Go to Sites > Deleted sites.
3. Search for the missing site by name or URL.
4. Select only that site.
5. Select Restore.

Deleted SharePoint sites are retained for 93 days. After that period, the site and all its content and settings are permanently deleted, including lists, libraries, pages, and any subsites.

An important note: if the site belongs to a Microsoft 365 group, restoring it will also restore the group and its resources. However, the other group resources are retained for only 30 days, whereas the site itself is retained for 93 days. So if the deletion happened more than 30 days ago, some connected resources may no longer be recoverable even if the site is.

For reference: Restore deleted sites - SharePoint in Microsoft 365 | Microsoft Learn

A 404 does not always mean permanent deletion. The site may have been renamed, moved to a different URL, locked, or made inaccessible through a permissions or group-membership change. Your administrator should also check:

• SharePoint admin center > Active sites, in case the site URL was changed
• Teams admin center > Manage teams, to see whether the Team still exists
• Microsoft 365 admin center > Teams & groups > Deleted groups
• Recycle bins for the parent Team and any private or shared channel sites
• Microsoft Purview retention policies or preservation holds
• Audit logs for site deletion, group deletion, renaming, or permission changes
• Any third-party Microsoft 365 backup service in use.

If your administrator cannot locate or restore the site, they should open a Microsoft 365 support case immediately, given the 93-day retention window. A support engineer can review the tenant's deletion records, check whether the site is recoverable server-side, and escalate to a specialized team if needed. For detailed instructions on how to get support, please refer to Get support - Microsoft 365 admin. If you don't know who your IT administrator is, please refer to this article: How do I find my Microsoft 365 admin? - Microsoft Support 

For additional assistance, use this link to find the appropriate contact number from your region: Global Customer Service phone numbers - Microsoft Support 

I truly hope the site can be recovered. Given how time-sensitive this is, please contact your administrator as soon as possible. Please let me know how it goes, and if there is anything else I can help with. Wising you all the best.

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