How do i fix synch issues

Question

I have 18 sync issues on my computer preventing me from saving new files and/or amended files

Answer 1

Hopefully, this will help: No access permissions to the item

You may not have access permissions to sync the file.

Answer 2

Follow these steps in order until sync starts working and files can be saved again.

1. Check basic OneDrive limits

• Confirm each file is under the OneDrive file size limit of 15 GB.
• Make sure filenames and folders do not break OneDrive/SharePoint rules (invalid characters, too many items, duplicate names, etc.). See the restrictions article under References and rename any flagged items.

2. Fix permission problems on specific files If OneDrive shows “This file can’t be synced” or similar for particular files:
3. In File Explorer, right‑click a problem file and select Properties.
4. Go to the Security tab.
5. Select the account name under Group or user names and ensure Read and Write are both checked in the Allow column.
6. If not, select Edit and grant Read and Write permissions, then select OK.
7. Move stuck files out of OneDrive and back For files that stay in error and block other syncs:
8. On the taskbar, right‑click the OneDrive cloud icon that shows an error and select Close OneDrive.
9. In File Explorer, move the problem file(s) from the OneDrive folder to a non‑OneDrive location (for example, **C:**).
10. Start OneDrive again from Start → type OneDrive → Open.
11. Wait until OneDrive shows Up to date.
12. Copy the file(s) from the temporary location back into the OneDrive folder and let them sync again.
13. Resolve sync conflicts and duplicate filenames

• If there are conflict icons or multiple versions of the same file (for example, device name appended to the filename), open both versions, decide which content to keep, then:
  • Merge into one file and delete the extra copies, or
  • Rename files to unique names so they no longer conflict.
• Avoid having two files with the same name in the same folder, especially when uploading via the OneDrive website or editing offline.

5. Clear Office upload cache (if using Microsoft 365 apps) If sync errors appear mainly when saving from Word, Excel, or PowerPoint:
6. In the notification area, find the Microsoft Office Upload Center icon (white up‑arrow in an orange circle).
7. Right‑click it and choose Settings.
8. Select Delete cached files.
9. Confirm with Delete cached information. Then try saving again to the OneDrive‑synced folder.
10. Stop and re‑establish sync (for stubborn issues) If many items show errors and the above does not clear them:
11. Right‑click the OneDrive icon in the notification area.
12. Choose Stop syncing a folder….
13. Select the OneDrive folder/library with issues and click Stop syncing, then confirm.
    • This only disconnects sync; files remain on the PC and in the cloud.
14. Set up sync again for the same OneDrive account. A new local OneDrive folder will be created; if the old folder name is still in use, the new one may get a suffix like OneDrive 1.
15. If using Windows 8.1/8

• The classic OneDrive sync app is no longer supported on Windows 7, 8, or 8.1. Make sure all latest Windows updates are installed.
• If sync is stuck for a long time, run a reset:
  1. Press Windows logo key + R.
  2. Type skydrive.exe /reset and select OK.
  3. After the reset, let OneDrive re‑sync all files.

If, after these steps, sync still shows 18 errors and blocks saving, use the OneDrive error details (right‑click the cloud icon → view sync problems) to identify any remaining invalid filenames, oversized files, or permission‑locked items and correct them individually.

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References:

• Fix OneDrive sync issues on Windows 8.1 or Windows RT 8.1
• OneDrive shows "This file can't be synced"
• Troubleshooting OneDrive for work or school sync issues
• Restrictions and limitations in OneDrive and SharePoint
• Repair sync connections in OneDrive for work or school