Protection, isolation and deletion in the protection history means that toxic files are isolated separately in the protection history page, and files placed in the isolation area cannot be accessed and deleted. Protection history refers to the protection system that comes with the window. Protection isolation and deletion is an option in the protection system, which means that toxic files are isolated separately, and files placed in the isolation area cannot be accessed and deleted. Therefore, the protection isolation deletion in the protection history means that the toxic files are isolated separately in the protection history page, and the files placed in the isolation area cannot be accessed and deleted.