The behavior is consistent with SharePoint/OneDrive permissions or site features blocking write access, not with a local Windows file‑system problem.
From the screenshot, the files are in OneDrive for work or school. When certain SharePoint/OneDrive settings are enabled, the account can become effectively read‑only:
- If the Limited-access user permission lockdown mode site collection feature is enabled on the OneDrive site, it restricts access to folders and can prevent creating or modifying content, even when items are visible. This can surface as access denied when creating folders or uploading files.
- If folder creation is disabled in the document library, Forms and other services cannot create their upload folders and show errors such as “You do not have access to create this folder or you do not have a valid license.”
- If company‑wide sharing links or sharing to non‑owners is disabled, some operations that rely on these capabilities can fail with access errors.
To restore write access in OneDrive for work or school, an administrator of the OneDrive/SharePoint site must:
- Check and, if appropriate, disable Limited-access user permission lockdown mode on the OneDrive site collection.
- Ensure the document library that stores the files allows folder creation (New Folder command enabled).
- Verify that sharing and company‑wide link settings are not blocking normal file operations.
If the same account also sees “Access denied” when opening or saving Office files in redirected folders on a local machine, the parent folder of the redirected location must grant at least Read Attributes (and related) permissions to the user; otherwise Office can fail with Access Denied and close unexpectedly.
Because these changes affect permissions and site features, they must be done by a SharePoint/OneDrive administrator or, for redirected folders, by a domain administrator.
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