Dear Murat Sahin,
Good day! Thank you for posting to Microsoft Community. We are happy to help you.
As per your description, it seems that you have set files to Read-only recommended (via Save As ->More options-> Tools -> General options) and uploaded to SharePoint, however, the opening behavior differs in Desktop app and browser when opening Word document in SharePoint.
If the understanding above is right, we've also done a quick test with Word in version 2111 and version 2301, and we cannot reproduce a similar situation on our side, Open as read-only prompts if we open file from SharePoint in desktop app, however, no option to change to Editing mode. Below attached are the screenshots of our test for your reference:
File located in local device open in Word desktop app:
File uploaded to SharePoint and open in Word Online in browser:
File uploaded to SharePoint and open in desktop app:
Click on yes, however, cannot edit, click on no, then can edit.
As you mentioned that," it is not shown for one user while it is still shown for another user, The browser view also opens the document in Viewing mode, but it gives the possibility of changing it to Editing via de Mode menu:", may I know if this happens on different devices?
If yes, please refer to below suggestions on that user's device and hope that can help:
- Please try Online Repair Office to make sure everything gets fixed, please refer to Repair an Office application - Microsoft Support for detailed steps.
- Please open the site with another browser in InPrivate mode to check the outcome.
- Please open your Windows under clean boot, a "clean boot" starts Windows with a minimal set of drivers and startup programs, so that you can determine whether a background program is interfering with your game or program. How to perform a clean boot in Windows (microsoft.com)
- If the suggestion above doesn’t work, please also try using a new user profile in Windows to check if it helps, this will help narrow down if this issue is related to old user profile. Create a local user or administrator account in Windows (microsoft.com)
If the issue persists, we do understand the inconvenience caused and apologize for it. We'd like to collect more information to help you further:
- Does the issue happen when you open a specific file or different files?
- Would you please also share your Office version by going to Word > File > Account and take a screenshot as shown below?
If this is not your scenario or any unclear, you can post back in your free time. We’re looking forward to your reply and will continue to help you all the time!
Thanks for your cooperation and understanding! We hope you stay safe and healthy always.
Sincerely,
Rhoda | Microsoft Community Moderator