A Microsoft file hosting and synchronization service.
Dear iy126,
Thank you for posting in Microsoft Community.
Based on the description, all files and folders have lock icon in your OneDrive sync folder. Apologies for the inconvenience caused to you by this behavior.
OneDrive will show a padlock icon next to the sync status if the file or folder has settings which prevent it from syncing.
Learn more about Restrictions and limitations in OneDrive and SharePoint (microsoft.com)
For more information, kindly check this article What do the OneDrive icons mean? (microsoft.com).
After you check the Restricts and limitations in OneDrive and SharePoint syncing, and you need to edit the files, I would suggest you to access your OneDrive for business on browser and edit it using Office online or open it using your Office desktop client.
Kindly post back if the information doesn’t help you, and we will do our best to assist you.
We look forward to your response. Thanks for your cooperation. Stay safe and healthy always.
Sincerely,
Zee | Microsoft Community Moderator
