SharePoint sync issues when opening from File Explorer

Hi, This might Help. Please check the below steps:

1. Stop and remove the old sync

Click the OneDrive icon → Settings

Go to Sync & Backup

Stop sync for the affected SharePoint library

In File Explorer, delete the old SharePoint folder

2. Remove old shortcuts

Open File Explorer

Unpin anything under Quick Access that points to the old library

3. Re-sync the SharePoint library

Open the SharePoint site in your browser

Click the Sync button

Let OneDrive create a fresh folder

4. Enable AutoSave in Office apps

Open Word or Excel

Go to File → Options → Save

Turn on: “AutoSave files stored in the cloud”

Make sure “Save to computer by default” is turned off

5. Verify OneDrive settings

Click OneDrive icon → Settings

Make sure “Files On-Demand” is enabled

Make sure “Use Office to sync files (co-authoring)” is enabled

6. Open files from the correct synced folder

Open files only from:

“OneDrive – CompanyName” or

“CompanyName – SharePoint Library”

in File Explorer, not from old shortcuts or random locations

Yes, We are having the same issue.  It started out of the blue and now half of our organization has no AutoSave.  

Did you get any fix?  

Check this may help:

1.    Enable Office file collaboration in OneDrive
o    Right-click the OneDrive cloud icon → Settings → Office tab.
o    Check “Use Office applications to sync Office files that I open”.
o    This ensures autosave and co-authoring work when opening from File Explorer.
2.    Check Files On-Demand
o    In OneDrive settings → Advanced → ensure Files On-Demand is enabled.
o    Files should show cloud icons in Explorer. If they are only local, autosave may not work.
3.    Update OneDrive and Office
o    Make sure users are on the latest OneDrive client (Windows 11 ships with it, but updates matter).
o    Update Office apps to the latest build, older builds often break autosave integration.
4.    Verify sync method
o    Ensure the SharePoint library is synced via the modern OneDrive client (OneDrive.exe), not the legacy Groove.exe.
o    If Groove.exe is in play, autosave and co-authoring may not work.
5.    Test with a fresh sync
o    Stop syncing the library, clear cached credentials, and re-sync from SharePoint Online.
o    Sometimes stale credentials or cached sync metadata cause Office to misidentify the file source.
6.    Check file path length and naming
o    Windows 11 enforces stricter path length rules. If the path exceeds 260 characters, autosave may fail.
o    Rename or shorten folder paths if necessary.