In other words, and in general, any differences between the REG file being executed and the Windows Registry will result in an addition or removal of whatever keys and values are involved.
N'okwu ndị ọzọ, yana n'ozuzu, ọdịiche dị n'etiti ndekọ REG na ndekọ Windows ga-eme ka mgbakwunye ma ọ bụ wepụ ihe ọ bụla igodo na ụkpụrụ dị.