m15 R1, Alienware Command Center Suite

I'm trying to clear room on the SSD of my laptop, and one of the things that is both taking up too much space for its own good and seems to be responsible for occasional BSOD (Memory Management Error) is Alienware Command Center Suite.  After uinstalling this, I've discovered that I have five folders in the Public/Public Documents/Downloaded Installations folder with five (see attached screenshots) large subfolders with what appear to be installer packages for older versions of alienware command center suite, and these are taking up several GB's of space (no small consideration since more than half of the 100GB on SSD is taken up by Windows files).  I was curious why these are (still) here, assuming after previous installations were completed and since I don't think I need AWCC as such, if I should bother keeping these installer files at all.  Or, are these even what they appear to be at all?  Thanks in advance for help!