windows – What is “%AppData%”? – Super User

The AppDataLocal and AppDataRoaming locations are the preferred locations for applications to store data that is not required to be exposed to the user. In a domain environment, the Roaming is used to copy the user’s environment as they log on to different computers. You can find a description in the Windows File System Namespace Usage …

https://superuser.com/questions/632891/what-is-appdata