Tip: You can access any desired Registry key with one click. For the Photos app for example, the following steps need to be done: To fix this manually, you can apply a simple Registry tweak. When this happens, Action Center notifies you that an app default was reset:
It is a part of the new protection mechanism which exists in the operating system since Windows 8.įor instance, Photos may take over your image file associations after an update, or due to the above mentioned reason. The UserChoice key stores an encrypted hash which indicates that the association was set by the user and not by some malware. When no file association has been set by the user, or when an app corrupts the UserChoice Registry key while setting associations, it causes file associations to be reset back to their Windows 10 defaults. Actually, updates are not the only reason why Windows 10 resets your default apps.
