There is no difference in use, but there is a slight difference in activation mechanism. Cracking activation only bypasses genuine verification, and what comes with it is truly authenticated. Cracking activation is in danger of not being activated by a new patch released in the future, but don't worry, I haven't encountered it in 3 years. Of course, mine is cracked by the official original image installation of Microsoft. If the landlord only uses it for daily use, there is no need to struggle with it.