Programdata is a protected system folder which contains all data and configuration of the programs that your PC has, the purpose is keeping safe that data and avoid possible risks to delete it.
ProgramData focuses on storing all the generic information of the applications, information that all users can access by default.
For example Antivirus will save your database and settings in this directory, this folder can be found in the dirve C:\ or you can enter %programdata% in the address bar of the Windows Explorer.
Sorry, but I was talking about "%LocalAppData%\Programs" not ProgramData. Here's a picture of this folder: