Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Dear Robin Watts,
Thank you for your quick reply and detailed description of the process. I'm sorry for the late reply. Everyone's device situation is different, so I would ask you to be sure to perform all the steps of "Clean Boot", although it is troublesome, it is indeed a simple and effective method.
I'm glad to see that you are willing to take the time and effort to solve this problem. Great! Even a small success is worth celebrating. It's a pity that you can't remember which application caused the problem. If this problem occurs again, you can recall the new application you used recently. This will help. Otherwise, you may need to perform these steps again.
If you think my reply is helpful to you, please mark it as "yes", which is very important for our customer ratings and can also help others with the same problem quickly locate this solution. Thank you for your understanding.
If you have any questions, please feel free to ask in the Microsoft Community. We are always here!
Best Wishes
Pyke.D | Microsoft Community Support Specialist