Microsoft officially explains why Win10 patch KB3135173 resets the default application

. Not long ago, Microsoft pushed the patch numbered KB3135173 to Win10 users, but the patch caused some problems, causing the notification center to keep popping up the default application being reset. The message is shown below.

In a recent statement, Microsoft said that the company did not intentionally modify the user default application in order to increase the usage of its own applications. The real reason is that the system detected the behavior of some third-party tools. It will affect the performance of the system, and the behavior here refers specifically to the way to set the default application.

Microsoft said: "We found that some applications have adopted an unsupported way to set themselves as the default application, such as deleting or destroying registry settings. For the correct way to set the file association, please refer to MSDN, click here to view. “

“ The KB3135173 update is intended to resolve this issue and will reset the default application when it detects that the registry settings were incorrectly deleted or corrupted. We have worked with some software providers and will not have this issue in subsequent updates. If the user changes the default application by a supported method, the registry will not be destroyed and the user's default application settings will be preserved. ”

From the Microsoft statement, the default application reset is caused by unreasonable settings from third-party software. If the user wants to manually change the default application, the most correct way is to set the — system — default application.

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