A Microsoft file hosting and synchronization service.
Dear Bruno P1,
Welcome to the Microsoft Community. Based on the information you've shared, I understand that you seem to be unable to log in and access OneDrive after formatting your computer, and I understand your frustration.In order to better identify why the issue is occurring, I'd like to know a little more about it from you:
- Has your current OneDrive icon changed? Is it showing up as normal? If you are experiencing some of the changes mentioned in this post: What do the OneDrive icons mean? - Microsoft Support
- Are you getting any error messages after clicking on it? If so, you can take a screenshot and share it with us.
- Also, did your OneDrive path change after you formatted your computer? Can you still see OneDrive in your file explorer?
- Have you tried some options such as resetting OneDrive or reinstalling OneDrive? If not it is recommended that you try to troubleshoot first.
Reset OneDrive: Reset OneDrive - Microsoft Support
In order not to get in your way, it is recommended that you can first access your data by logging into the web version of OneDrive: onedrive.live.comI look forward to your further updates and hopefully together we can find the cause of the problem and use OneDrive normally.Wish you all the best.
Best wishes
Isabella-MSFT | Microsoft Community Support Specialist